https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/enhttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/releases/effect/40-beta/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/releases/effect/40-beta/Effect v4 is officially in beta. Here's what you need to know. Tue, 17 Feb 2026 00:00:00 GMT<p>After years of experimentation, community feedback, and iteration, Effect v4 is officially in beta. This is, by far, the most ambitious set of changes we have ever made to Effect and its ecosystem, and we’re excited to get it into your hands.</p> <p>You can install the beta today:</p> <p><code dir="auto">npm install effect@4.0.0-beta.0</code></p> <p>Effect v4 is the culmination of years of feedback from the Effect community — from production users who hit real pain points, newcomers who found the ecosystem hard to navigate, and from folks who were interested in Effect but never took the plunge. This release is for all of you.</p> <div tabindex="-1"><h2 id="faster-runtime-leaner-bundles">Faster runtime. Leaner bundles.</h2><a aria-labelledby="faster-runtime-leaner-bundles" href="#faster-runtime-leaner-bundles"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Let’s start with what you’ll feel immediately.</p> <p>The core fiber runtime has been rewritten from scratch to have lower memory overhead, faster execution, and simpler internals. Every Effect application will benefit from these optimizations immediately.</p> <p>Beyond the runtime, a substantial number of core modules have been rebuilt with performance as a primary design goal. The cumulative result: v4 is faster and lighter than v3 in every dimension.</p> <div tabindex="-1"><h3 id="bundle-size">Bundle size</h3><a aria-labelledby="bundle-size" href="#bundle-size"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>One of the most common concerns about Effect — especially for frontend applications — has been bundle size.</p> <p>Effect has always been tree-shakable, and in v4, many core modules have been rewritten from the ground up to be smaller and more efficient. A minimal program using Effect, Stream, and Schema drops from roughly 70 kB in v3 to about 20 kB in v4 — and individual use cases scale accordingly.</p> <video controls="" width="100%"><source src="../blog/_assets/bundle-size-viz.mp4" type="video/mp4"></video> <p>Whether you’re pulling in just the core, adding streams, or using schema, the size of your Effect v4 applications will be significantly smaller than with Effect v3.</p> <div tabindex="-1"><h2 id="one-version-one-ecosystem">One version. One ecosystem.</h2><a aria-labelledby="one-version-one-ecosystem" href="#one-version-one-ecosystem"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>In v3, each package was versioned independently:</p> <ul> <li><code dir="auto">effect@3.x</code></li> <li><code dir="auto">@effect/platform@0.x</code></li> <li><code dir="auto">@effect/sql@0.x</code></li> <li>and so on</li> </ul> <p>If you’ve ever debugged a version mismatch between Effect packages, you know the pain. In v4, that’s over. All Effect ecosystem packages share a single version number and are released together. When you see <code dir="auto">effect@4.0.0-beta.0</code>, you know that <code dir="auto">@effect/sql-pg@4.0.0-beta.0</code> is the matching version. No guessing, no cross-referencing changelogs.</p> <p>Some packages will receive a new version even when they contain no changes, but we believe this is a worthwhile tradeoff for simpler dependency management.</p> <div tabindex="-1"><h3 id="a-consolidated-core">A consolidated core</h3><a aria-labelledby="a-consolidated-core" href="#a-consolidated-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Many previously separate packages have been consolidated into the core <code dir="auto">effect</code> package.</p> <p>Functionality that was spread across <code dir="auto">@effect/platform</code>, <code dir="auto">@effect/rpc</code>, <code dir="auto">@effect/cluster</code>, and others now lives directly inside <code dir="auto">effect</code>.</p> <p>The packages that remain separate are platform-specific, provider-specific, or technology-specific implementations:</p> <ul> <li><code dir="auto">@effect/platform-*</code> — platform packages</li> <li><code dir="auto">@effect/sql-*</code> — SQL driver packages</li> <li><code dir="auto">@effect/ai-*</code> — AI provider packages</li> <li><code dir="auto">@effect/opentelemetry</code> — OpenTelemetry integration</li> <li><code dir="auto">@effect/atom-*</code> — framework-specific atom bindings</li> <li><code dir="auto">@effect/vitest</code> — testing utilities for Vitest</li> </ul> <video controls="" width="100%"><source src="../blog/_assets/core-package.mp4" type="video/mp4"></video> <p>The principle is simple: core abstractions live in <code dir="auto">effect</code>. Separate packages provide the concrete implementations that connect those abstractions to specific runtimes, databases, APIs, and frameworks.</p> <div tabindex="-1"><h2 id="unstable-modules">Unstable modules</h2><a aria-labelledby="unstable-modules" href="#unstable-modules"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Effect v4 introduces <strong>unstable modules</strong> — accessible via <code dir="auto">effect/unstable/*</code> import paths.</p> <p>In v3, delivering new functionality meant creating new packages, which you then had to discover, install, and keep in sync.</p> <p>In v4, new capabilities ship inside the core <code dir="auto">effect</code> package — but without committing to semver stability for APIs that are still evolving.</p> <p>The contract is simple:</p> <ul> <li>Modules under <code dir="auto">effect/unstable/*</code> may receive breaking changes in minor releases</li> <li>Modules outside <code dir="auto">unstable/</code> follow strict semver — no breaking changes until the next major version</li> <li>As unstable modules mature, they graduate into the top-level <code dir="auto">effect/*</code> namespace</li> </ul> <p>v4 ships with <a href="https://github.com/Effect-TS/effect-smol/tree/main/packages/effect/src/unstable">17 unstable modules</a> covering AI, HTTP, Schema, SQL, RPC, CLI, workflows, clustering, and more.</p> <div tabindex="-1"><h2 id="the-beta-phase">The beta phase</h2><a aria-labelledby="the-beta-phase" href="#the-beta-phase"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The v4 codebase lives in the <a href="https://github.com/Effect-TS/effect-smol">Effect-TS/effect-smol</a> repository. Issues, pull requests, and discussions related to v4 should be directed there.</p> <p><strong>This is a beta.</strong> We’ll iterate quickly, and beta releases may include breaking changes. APIs will evolve as we incorporate real-world feedback and refine the design, and just like before, we will document changes in each release in the package changelog.</p> <p>If you’re running Effect in production, v3 remains our recommended choice for now.</p> <p>Once v4 does stabilize, it will be a <strong>long-term stable (LTS) release</strong>. We want major versions to be infrequent going forward, and we’ll take the time we need to get there.</p> <div tabindex="-1"><h3 id="effect-v3-going-forward">Effect v3 going forward</h3><a aria-labelledby="effect-v3-going-forward" href="#effect-v3-going-forward"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p><strong>Effect v3 will continue to receive active maintenance after v4 reaches stability.</strong> We’ll publish a maintenance schedule as v4 approaches its stable release.</p> <p>One thing to note, however, is that we are introducing a <strong>feature freeze for v3</strong>: bug fixes and security patches will continue, but new features will be developed exclusively for v4.</p> <div tabindex="-1"><h2 id="migrating-from-effect-v3">Migrating from Effect v3</h2><a aria-labelledby="migrating-from-effect-v3" href="#migrating-from-effect-v3"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>If you’re coming from Effect v3, the core programming model — <code dir="auto">Effect</code>, <code dir="auto">Layer</code>, <code dir="auto">Schema</code>, <code dir="auto">Stream</code>, and the rest — is the same. The changes are in how packages are organized, how modules are versioned, and in the details of specific APIs.</p> <p>Two migration guides are available:</p> <ul> <li><a href="https://github.com/Effect-TS/effect-smol/blob/main/MIGRATION.md"><strong>v3 to v4 Migration Guide</strong></a> — covers the overall transition</li> <li><a href="https://github.com/Effect-TS/effect-smol/blob/main/packages/effect/SCHEMA.md"><strong>Schema v4 Migration Guide</strong></a> — covers the Schema rewrite in detail</li> </ul> <p>We’re also building migration tooling: codemods for renamings, AI-assisted migration skills, and more. We prioritized getting the release into your hands over delaying the beta to build out migration tooling. These tools will follow.</p> <div tabindex="-1"><h2 id="try-it-now">Try it now</h2><a aria-labelledby="try-it-now" href="#try-it-now"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Port a project, a module, or even just a file, and tell us how it goes. When you hit a bug, a confusing API, a missing feature, or something that just doesn’t feel right, <a href="https://github.com/Effect-TS/effect-smol/issues">file an issue on effect-smol</a>. Reproduction steps, code snippets, and descriptions of what you expected vs. what happened all help us move faster.</p> <p>Not ready to migrate? Testing the beta against your existing codebase and reporting what breaks is just as valuable. Even “I tried to upgrade and here’s what didn’t work” gives us the signal we need.</p> <p>Join the <a href="https://discord.gg/effect-ts">Effect Discord</a> to ask questions and share your experience directly with the Effect team, and follow along as Effect v4 develops.</p> <div tabindex="-1"><h2 id="thank-you">Thank you!</h2><a aria-labelledby="thank-you" href="#thank-you"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The feedback you’ve shared — in GitHub issues, Discord threads, conference hallways, and production codebases — has directly shaped the decisions behind v4. Many of these changes exist because someone in the community pointed out a rough edge, suggested a better approach, or shared how they were using Effect in the real world.</p> <p>And none of it would have shipped without the core team, who have poured an extraordinary amount of work into this release. The scope of what’s been rewritten, rethought, and refined is enormous.</p> <p>Thank you all, and Happy Effecting!</p>ReleasesEffecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/02/06/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/02/06/Claude Code recommending Effect, again! Effect and the Near Inexpressible Majesty of Layers by Kit Langton. Lalph & Effect Office Hours coding sessions. Fri, 06 Feb 2026 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>6100+ community members on <a href="https://discord.gg/effect-ts">Discord</a>.</li> <li>13k 🌟 stars on <a href="https://github.com/Effect-TS/effect">GitHub</a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/6018">Fix(Match): handle null/undefined in Match.tag and Match.tagStartsWith</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/6026">Fix up the OpenRouter AI Provider schemas</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-cli">Effect CLI</h3><a aria-labelledby="effect-cli" href="#effect-cli"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/6022">Fix(cli): fix Prompt.text clear when input wraps terminal lines</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-cluster">Effect Cluster</h3><a aria-labelledby="effect-cluster" href="#effect-cluster"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/6031">Backport MessageStorage encoded NonEmptyArray</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/6033">Backport PgClient.fromPool</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/6016">Add SafeIntegers support to @effect/sql-sqlite-bun client</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/6042">Upgrade better-sqlite3 to v12</a> (Improvement)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/6021">Fix(platform): properly join URL paths in HttpClientRequest.appendUrl</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/6019">Fix(HttpClient): backport retryTransient fixes from v4</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/6035">Backport client interrupt error handling</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="general-chores">General Chores</h3><a aria-labelledby="general-chores" href="#general-chores"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/6028">Add agents.md</a></li> <li><a href="https://github.com/Effect-TS/effect/pull/6029">Update docgen</a></li> <li><a href="https://github.com/Effect-TS/effect/pull/6030">Tweak AGENTS.md</a></li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-events">Community Events</h2><a aria-labelledby="community-events" href="#community-events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The 6th edition of the <a href="https://www.meetup.com/fr-fr/effect-paris/events/312953757/">Effect Paris Meetup</a>, organized by <a href="https://www.evryg.com/">Evryg</a> and <a href="https://www.galadrim.fr/">Galadrim</a> was a success! A big thank you to the speakers, Swann Herrera, Thomas Dupont, and Benjamin Drighès, for their talks on Effect Scheduler, Domain Driven Design with Effect, and real-time AI orchestration. We look forward to the next Parisienne meetup 🇫🇷!</p> <div> <article> <div> <a href="https://twitter.com/c9antoine/status/2018756405851836909" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1700899604261220352/WydepvoB_normal.jpg" alt="Antoine Coulon" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/c9antoine/status/2018756405851836909" target="_blank" rel="noopener noreferrer"> <div> <span title="Antoine Coulon">Antoine Coulon</span> </div> </a> <div> <a href="https://twitter.com/c9antoine/status/2018756405851836909" target="_blank" rel="noopener noreferrer"> <span title="@c9antoine">@c9antoine</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=c9antoine" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/c9antoine/status/2018756405851836909" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> Paris meetup #6 edition is now live hosted by Galadrim</span></p> <div> <div> <a href="https://twitter.com/c9antoine/status/2018756405851836909" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:75%"></div> <img src="https://pbs.twimg.com/media/HAQQPP_XgAEG9JP?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/c9antoine/status/2018756405851836909" target="_blank" rel="noopener noreferrer" aria-label="6:40 PM · Feb 3, 2026"> <time datetime="2026-02-03T18:40:08.000Z"> 6:40 PM · Feb 3, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2018756405851836909" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 13 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>13</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2018756405851836909" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/c9antoine/status/2018756405851836909" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> <p>To stay informed about future events, visit our <a href="https://luma.com/effect-community">Effect Community Events calendar</a> and subscribe for updates.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://x.com/kitlangton/article/2016945444312498340">Effect and the Near Inexpressible Majesty of Layers</a> - An article by <a href="https://x.com/kitlangton">Kit Langton</a> exploring Effect’s <code dir="auto">Layer</code> type and dependency injection.</li> </ul> <p> </p> <ul> <li>Effect Schema is now natively integrated with Drizzle ORM!</li> </ul> <div> <article> <div> <a href="https://twitter.com/DrizzleORM/status/2019529072897142935" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1924491686622658561/3MiAto8o_normal.jpg" alt="Drizzle ORM" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/DrizzleORM/status/2019529072897142935" target="_blank" rel="noopener noreferrer"> <div> <span title="Drizzle ORM">Drizzle ORM</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/DrizzleORM/status/2019529072897142935" target="_blank" rel="noopener noreferrer"> <span title="@DrizzleORM">@DrizzleORM</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=DrizzleORM" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/DrizzleORM/status/2019529072897142935" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>drizzle-orm@1.0.0-beta.15 is live with native Effect Schema support 🎉 </span></p> <div> <div> <a href="https://twitter.com/DrizzleORM/status/2019529072897142935" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:140.18987341772151%"></div> <img src="https://pbs.twimg.com/media/HAbO9p9X0AAmrvn?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/DrizzleORM/status/2019529072897142935" target="_blank" rel="noopener noreferrer" aria-label="9:50 PM · Feb 5, 2026"> <time datetime="2026-02-05T21:50:26.000Z"> 9:50 PM · Feb 5, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2019529072897142935" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 473 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>473</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2019529072897142935" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/DrizzleORM/status/2019529072897142935" target="_blank" rel="noopener noreferrer"> <span> Read 25 replies </span> </a> </div> </article> </div> <p> </p> <ul> <li>Looks like Claude Opus is even more effect-pilled ✨</li> </ul> <div> <article> <div> <a href="https://twitter.com/DavidKPiano/status/2018154041633612260" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/619677584805208064/RwwbnNpi_normal.jpg" alt="David K 🎹" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/DavidKPiano/status/2018154041633612260" target="_blank" rel="noopener noreferrer"> <div> <span title="David K 🎹">David K 🎹</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/DavidKPiano/status/2018154041633612260" target="_blank" rel="noopener noreferrer"> <span title="@DavidKPiano">@DavidKPiano</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=DavidKPiano" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/DavidKPiano/status/2018154041633612260" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>OKAY FINE CLAUDE I'll learn Effect</span></p> <div> <div> <a href="https://twitter.com/DavidKPiano/status/2018154041633612260" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:46.6089466089466%"></div> <img src="https://pbs.twimg.com/media/HAHsA9mXsAAQX9H?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/DavidKPiano/status/2018154041633612260" target="_blank" rel="noopener noreferrer" aria-label="2:46 AM · Feb 2, 2026"> <time datetime="2026-02-02T02:46:33.000Z"> 2:46 AM · Feb 2, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2018154041633612260" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 89 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>89</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2018154041633612260" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/DavidKPiano/status/2018154041633612260" target="_blank" rel="noopener noreferrer"> <span> Read 7 replies </span> </a> </div> </article> </div> <p> </p> <ul> <li><a href="https://polar.sh/">Polar</a> is using Effect in production!</li> </ul> <div> <article> <div> <a href="https://twitter.com/emilwidlund/status/2019764824373088721" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2018099583784558592/G0ER0-AD_normal.jpg" alt="emil" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/emilwidlund/status/2019764824373088721" target="_blank" rel="noopener noreferrer"> <div> <span title="emil">emil</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/emilwidlund/status/2019764824373088721" target="_blank" rel="noopener noreferrer"> <span title="@emilwidlund">@emilwidlund</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=emilwidlund" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/emilwidlund/status/2019764824373088721" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>finally got some </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> code out in production ✨</span></p> <div> <article> <div> <a href="https://twitter.com/polar_sh/status/2019763350960263647" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1830928297477185538/uKJNKdTI_normal.jpg" alt="Polar" width="20" height="20"> </div> </a> <div> <div> <span title="Polar">Polar</span> </div> <div><svg viewBox="0 0 22 22" aria-label="Verified account" role="img"> <g> <linearGradient gradientUnits="userSpaceOnUse" id="0-a" x1="4.411" x2="18.083" y1="2.495" y2="21.508"> <stop offset="0" stop-color="#f4e72a"></stop> <stop offset=".539" stop-color="#cd8105"></stop> <stop offset=".68" stop-color="#cb7b00"></stop> <stop offset="1" stop-color="#f4ec26"></stop> <stop offset="1" stop-color="#f4e72a"></stop> </linearGradient> <linearGradient gradientUnits="userSpaceOnUse" id="0-b" x1="5.355" x2="16.361" y1="3.395" y2="19.133"> <stop offset="0" stop-color="#f9e87f"></stop> <stop offset=".406" stop-color="#e2b719"></stop> <stop offset=".989" stop-color="#e2b719"></stop> </linearGradient> <g clip-rule="evenodd" fill-rule="evenodd"> <path d="M13.324 3.848L11 1.6 8.676 3.848l-3.201-.453-.559 3.184L2.06 8.095 3.48 11l-1.42 2.904 2.856 1.516.559 3.184 3.201-.452L11 20.4l2.324-2.248 3.201.452.559-3.184 2.856-1.516L18.52 11l1.42-2.905-2.856-1.516-.559-3.184zm-7.09 7.575l3.428 3.428 5.683-6.206-1.347-1.247-4.4 4.795-2.072-2.072z" fill="url(#0-a)"></path> <path d="M13.101 4.533L11 2.5 8.899 4.533l-2.895-.41-.505 2.88-2.583 1.37L4.2 11l-1.284 2.627 2.583 1.37.505 2.88 2.895-.41L11 19.5l2.101-2.033 2.895.41.505-2.88 2.583-1.37L17.8 11l1.284-2.627-2.583-1.37-.505-2.88zm-6.868 6.89l3.429 3.428 5.683-6.206-1.347-1.247-4.4 4.795-2.072-2.072z" fill="url(#0-b)"></path> <path d="M6.233 11.423l3.429 3.428 5.65-6.17.038-.033-.005 1.398-5.683 6.206-3.429-3.429-.003-1.405.005.003z" fill="#d18800"></path> </g> </g> </svg></div> <div> <span title="@polar_sh">@polar_sh</span> </div> </div> </div> <p><span>introducing our very own Polar CLI ✨ forget about complicated dances with ngrok to get your polar webhooks delivered to localhost polar listen &amp;lt;URL&amp;gt; automatically relays webhooks to your local machine — making it dead simple to test webhooks locally. </span><span>polar.sh/docs/integrate…</span></p> <div> <div> <a href="https://twitter.com/polar_sh/status/2019763350960263647" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:59.33884297520661%"></div> <img src="https://pbs.twimg.com/media/HAeif6TXwAA5t0k?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div> </article> </div><div> <a href="https://twitter.com/emilwidlund/status/2019764824373088721" target="_blank" rel="noopener noreferrer" aria-label="1:27 PM · Feb 6, 2026"> <time datetime="2026-02-06T13:27:14.000Z"> 1:27 PM · Feb 6, 2026 </time> </a> <a 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This Tweet has 58 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>58</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2019764824373088721" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/emilwidlund/status/2019764824373088721" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> <p> </p> <ul> <li> <p>Welcome to the Effect-hood, Zack! 🚀</p> <div> <article> <div> <a href="https://twitter.com/ScriptedAlchemy/status/2017649869330993226" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1601787403185934336/plWmMMB8_normal.jpg" alt="Supreme Leader Wiggum" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/ScriptedAlchemy/status/2017649869330993226" target="_blank" rel="noopener noreferrer"> <div> <span title="Supreme Leader Wiggum">Supreme Leader Wiggum</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/ScriptedAlchemy/status/2017649869330993226" target="_blank" rel="noopener noreferrer"> <span title="@ScriptedAlchemy">@ScriptedAlchemy</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=ScriptedAlchemy" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/ScriptedAlchemy/status/2017649869330993226" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> is the only way. I once was lost But now I’m found.</span></p> <div> <a href="https://twitter.com/ScriptedAlchemy/status/2017649869330993226" target="_blank" rel="noopener noreferrer" aria-label="5:23 PM · Jan 31, 2026"> <time datetime="2026-01-31T17:23:09.000Z"> 5:23 PM · Jan 31, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2017649869330993226" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 185 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>185</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2017649869330993226" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/ScriptedAlchemy/status/2017649869330993226" target="_blank" rel="noopener noreferrer"> <span> Read 11 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/envoy1084/effect-redis"><code dir="auto">effect-redis</code></a> - An experimental Effect wrapper for Redis, providing type-safe, composable Redis operations with support for transactions, pipelines, and all major Redis command groups. Project by <a href="https://github.com/envoy1084">envoy1084</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/erayack/effect-gpt"><code dir="auto">effect-gpt</code></a> - A transformer-based LLM implementation built from scratch using Effect. The project covers tokenization, transformer architecture components, training, and inference, leveraging Effect’s service-based architecture and type-safe error handling. Project by <a href="https://github.com/erayack">erayack</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/bishalr0y/effect-url-shortener"><code dir="auto">effect-url-shortener</code></a> - A URL shortening API built with Effect that demonstrates functional programming principles, type-safe error handling, and composable effects. Project by <a href="https://github.com/bishalr0y">bishalr0y</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/nikelborm/effect-garden/tree/main/packages/ts-key-not-enum"><code dir="auto">ts-key-not-enum</code></a> - A package for type-safe comparison of keyboard event <code dir="auto">.key</code> properties with non-printable values. Project by <a href="https://github.com/nikelborm">nikelborm</a>.</li> </ul> <p> </p> <div tabindex="-1"><h1 id="effect-content-update">Effect Content Update</h1><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Effect Services &#x26; Layers (Office Hours 14)</li> </ul> <p> </p> <ul> <li>Orchestrating AI Coding Agents with Linear, Git Worktrees, and PR-based review | Hacking on Lalph 2</li> </ul> <p> </p> <ul> <li>Max and Tim continued working on <em>Lalph - An AI Agent Orchestrator</em>. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/2019171490978230354" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2019171490978230354" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2019171490978230354" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/2019171490978230354" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Discussing Lalph - Tim's AI Agent Orchestrator </span><a href="https://x.com/i/broadcasts/1rmxPvoPNAmGN" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/2019171490978230354" target="_blank" rel="noopener noreferrer" aria-label="10:09 PM · Feb 4, 2026"> <time datetime="2026-02-04T22:09:32.000Z"> 10:09 PM · Feb 4, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2019171490978230354" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 19 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>19</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2019171490978230354" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/2019171490978230354" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://x.com/EffectTS_/status/2019063589987098916">Effect Office Hours 15</a> went live on Wednesday on X(Twitter)! The edited version will be on our YouTube channel soon.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/2000913813756100778">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&#x26;l=en-GB">Apple Podcast</a>.</p> <p>Adam Rankin, CTO at <a href="https://www.joinwarp.com/">Warp</a>, joined Johannes Schickling to talk about using Effect to bring structure and composability to a growing TypeScript codebase, enabling a small, fast-moving team to stay productive while shipping reliable payment &#x26; payroll systems.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tenzir</strong>: <a href="https://tenzir.com/company/careers/software-engineer-product">Software Engineer (Product)</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p>A <strong>consumer music startup</strong> hiring for an Effect Backend Consultant + a full-time role based in NYC. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1457499793042575371">our Discord</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><a href="https://trysolid.com/"><strong>Solid</strong></a> is hiring its early engineering team (Bay Area). The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1455623052636459209">our Discord</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/30/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/30/Actor Model | Effect Cluster. Refactoring Twitch-Spotify Integration with Effect Cluster & Effect Office Hours coding sessions. Fri, 30 Jan 2026 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>6080+ community members on <a href="https://discord.gg/effect-ts">Discord</a>.</li> <li>13k 🌟 stars on <a href="https://github.com/Effect-TS/effect">GitHub</a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5998">Fix(@effect/sql-pg): readded stream to PgClientConfig</a> (Bug Fix)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-events">Community Events</h2><a aria-labelledby="community-events" href="#community-events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>If you’re in Paris, don’t miss the upcoming <a href="https://www.meetup.com/fr-fr/effect-paris/events/312953757/">Effect Paris Meetup #6 🇫🇷</a> on February 3.</p> <p>To stay informed about future events, visit our <a href="https://luma.com/effect-community">Effect Community Events calendar</a> and subscribe for updates.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><strong>Actor Model | Effect.ts Cluster</strong> by Lucas Barake.</li> </ul> <p> </p> <ul> <li><a href="https://skills.sh/makisuo/skills/effect-best-practices">Effect Best Practices</a> - A code style guide and linting skill for AI coding assistants that enforces consistent patterns when working with Effect codebases, covering service architecture, error handling, type safety, frontend state management, configuration, and observability. Project by <a href="https://github.com/makisuo">makisuo</a>.</li> </ul> <p> </p> <ul> <li><strong>Foldkit</strong> - a frontend framework built on Effect that follows The Elm Architecture - now has a proper <a href="https://foldkit.dev/">docs website</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/erikshestopal/effect-inngest"><code dir="auto">effect-inngest</code></a> - A TypeScript SDK combining Effect with Inngest’s durable workflow execution platform. Features full type inference, Effect-native steps, dependency injection via Effect’s Layer system, and Schema validation. Project by <a href="https://github.com/erikshestopal">erikshestopal</a>.</li> </ul> <p> </p> <ul> <li><a href="https://serial.dev/#try">serial.dev</a> - a multiplayer coding platform with fast coding sandboxes, built with Effect on the backend, is now in <a href="https://x.com/NatalieMarleny/status/2015103211946823733?s=20">public preview</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/cevr/effect-machine"><code dir="auto">effect-machine</code></a> - A library for building type-safe state machines using Effect. Features a schema-first approach with compile-time transition validation, state-scoped effects with auto-cancellation, parameterized guards, deterministic testing, and persistence support for snapshots and event sourcing. Project by <a href="https://github.com/cevr">cevr</a>.</li> </ul> <p> </p> <ul> <li><a href="https://voltaire-effect.tevm.sh/"><code dir="auto">voltaire-effect</code></a> - A TypeScript library combining Effect with Voltaire Ethereum primitives for type-safe smart contract interactions. Features composable error handling, built-in retry policies, timeout handling, and WASM-optimized cryptography.</li> </ul> <p> </p> <div tabindex="-1"><h1 id="effect-content-update">Effect Content Update</h1><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p>Office Hours 13: andThen vs flatMap, HTTP Client vs HTTP API, AI workflow and Ralph, etc.</p> </li> </ul> <p> </p> <ul> <li>Refactoring Twitch-Spotify Integration with Effect Cluster</li> </ul> <p> </p> <ul> <li><a href="https://x.com/EffectTS_/status/2016527048689487984">Effect Office Hours 14</a> went live on Wednesday on X(Twitter)! The edited version will be on our YouTube channel soon.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/2000913813756100778">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&#x26;l=en-GB">Apple Podcast</a>.</p> <p>Adam Rankin, CTO at <a href="https://www.joinwarp.com/">Warp</a>, joined Johannes Schickling to talk about using Effect to bring structure and composability to a growing TypeScript codebase, enabling a small, fast-moving team to stay productive while shipping reliable payment &#x26; payroll systems.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tenzir</strong>: <a href="https://tenzir.com/company/careers/software-engineer-product">Software Engineer (Product)</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p>A <strong>consumer music startup</strong> hiring for an Effect Backend Consultant + a full-time role based in NYC. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1457499793042575371">our Discord</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><a href="https://trysolid.com/"><strong>Solid</strong></a> is hiring its early engineering team (Bay Area). The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1455623052636459209">our Discord</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/23/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/23/13k 🌟! I wish I learned Effect sooner, the secret to production-grade Typescript. RcMap | Effect in 5(ish). Hacking on Lalph & Effect Office Hours coding sessions. Fri, 23 Jan 2026 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>6070+ community members on <a href="https://discord.gg/effect-ts">Discord</a>.</li> <li>13k 🌟 stars on <a href="https://github.com/Effect-TS/effect">GitHub</a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5970">Fix Config.orElseIf signature</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5981">Fix Array.flatten type inference loss</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5996">Fix prototype comparison in Equal.ts</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-opentelemetry">Effect Opentelemetry</h3><a aria-labelledby="effect-opentelemetry" href="#effect-opentelemetry"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5929">Fix(opentelemetry): correct Span.addEvent 2-arg overload</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5927">Feat(opentelemetry): add protobuf protocol support for OTLP exporters</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5952">Fix(opentelemetry): make sdk-trace-node and sdk-trace-web required peer deps</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5977">Add rows and isTTY to Terminal</a> (Features)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-events">Community Events</h2><a aria-labelledby="community-events" href="#community-events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t miss our upcoming <a href="https://luma.com/effect-community?e=calev-yq3Meujax7IFE8j">Effect Berlin Meetup #2 🇩🇪</a> on January 29, and the newly announced <a href="https://www.meetup.com/fr-fr/effect-paris/events/312953757/">Effect Paris Meetup #6 🇫🇷</a> on February 3.</p> <p>To stay informed about future events, visit our <a href="https://luma.com/effect-community">Effect Community Events calendar</a> and subscribe for updates.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><strong>I wish I learned Effect sooner: The secret to production-grade Typescript</strong> by backpine labs.</li> </ul> <p> </p> <ul> <li><strong>RcMap | Effect in 5(ish)</strong> by Lucas Barake.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/BLANKSPACETS/better-pdf-reader"><code dir="auto">better-pdf-reader</code></a> - An open-source PDF and EPUB reader for developers featuring a command palette, reading timer, AI-friendly Markdown export, and OLAP analytics. Built with Effect, Next.js, and PDF.js with a local-first architecture. Project by <a href="https://github.com/BLANKSPACETS">BLANKSPACETS</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/joepjoosten/odata-effect"><code dir="auto">odata-effect</code></a> - A fully tree-shakable OData V2/V4 client for SAP services built on Effect, featuring type-safe query building, batch requests, and SAP-specific error handling. Project by <a href="https://github.com/joepjoosten">joepjoosten</a>.</li> </ul> <p> </p> <ul> <li><a href="https://blog.type-driven.com/effect-ts-new-standard/">Effect TS: The New Standard for Building Production APIs</a> - A blog post by <a href="https://blog.type-driven.com">Type Driven</a> exploring why Effect is becoming the preferred choice for production APIs, highlighting typed errors, built-in reliability features, dependency injection, and integrated observability.</li> </ul> <p> </p> <ul> <li><a href="https://javascript.plainenglish.io/building-a-fault-tolerant-web-data-ingestion-pipeline-with-effect-ts-0bc5494282ba">Building a Fault-Tolerant Web Data Ingestion Pipeline with Effect-TS</a> - A practical guide on building predictable, fault-tolerant web data ingestion systems using typed errors, safe resource management, declarative retry logic, and composable pipelines.</li> </ul> <p> </p> <div tabindex="-1"><h1 id="effect-content-update">Effect Content Update</h1><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><strong>Hacking on Lalph - A Ralph-inspired AI agent orchestrator powered by Effect</strong> and <strong>Office Hours 12: Library Design, Error Modeling, Schema vs runtime errors, Effect 4.0 APIs</strong> are now on our YouTube Channel.</li> </ul> <p> </p> <p> </p> <ul> <li><a href="https://x.com/EffectTS_/status/2013990786116046954">Effect Office Hours 13</a> went live on Wednesday on X(Twitter)! The edited version will be on our YouTube channel soon.</li> </ul> <p> </p> <ul> <li>Max joined Tim to continue the work on <em>Lalph - An AI Agent Orchestrator</em>. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/2014102979897598233" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2014102979897598233" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2014102979897598233" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/2014102979897598233" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Hacking on Lalph - An AI Agent Orchestrator </span><a href="https://x.com/i/broadcasts/1lPKqvmLmPLGb" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/2014102979897598233" target="_blank" rel="noopener noreferrer" aria-label="10:29 PM · Jan 21, 2026"> <time datetime="2026-01-21T22:29:05.000Z"> 10:29 PM · Jan 21, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2014102979897598233" target="_blank" rel="noopener noreferrer" aria-label="Like. 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Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tenzir</strong>: <a href="https://tenzir.com/company/careers/software-engineer-product">Software Engineer (Product)</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p>A <strong>consumer music startup</strong> hiring for an Effect Backend Consultant + a full-time role based in NYC. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1457499793042575371">our Discord</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><a href="https://trysolid.com/"><strong>Solid</strong></a> is hiring its early engineering team (Bay Area). The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1455623052636459209">our Discord</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/16/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/16/6k Discord members 🎉. distilled-cloudflare by Alchemy. Cache Effect in 5(ish) by Lucas Barake. Effect Office Hours and ChEffect coding sessions. Fri, 16 Jan 2026 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 6030+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-cli">Effect CLI</h3><a aria-labelledby="effect-cli" href="#effect-cli"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5983">Fix(cli): allow options after positional arguments</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5975">Fix @effect/workflow README: Use provideMerge instead of provide</a> (Documentation Update)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Sharing another community milestone this week: the <a href="https://discord.gg/effect-ts">Effect Discord</a> reached 6k+ members!🚀</li> </ul> <p> </p> <ul> <li><strong>Cache | Effect in 5(ish)</strong> by <a href="https://www.youtube.com/@lucas-barake">Lucas Barake</a>.</li> </ul> <p> </p> <ul> <li>Claude Code is officially a full-fledged Effecter! 👀 <div> <article> <div> <a href="https://twitter.com/ssijak/status/2010458961464746268" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1365960498865463296/lik3JrpB_normal.jpg" alt="Saša Šijak" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/ssijak/status/2010458961464746268" target="_blank" rel="noopener noreferrer"> <div> <span title="Saša Šijak">Saša Šijak</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/ssijak/status/2010458961464746268" target="_blank" rel="noopener noreferrer"> <span title="@ssijak">@ssijak</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=ssijak" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/ssijak/status/2010458961464746268" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Claude code just recommended </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> over NestJS/Fastify/Express for API, threshold is crossed</span></p> <div> <div> <a href="https://twitter.com/ssijak/status/2010458961464746268" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:36.407766990291265%"></div> <img src="https://pbs.twimg.com/media/G-aVvnOWMAEigXr?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/ssijak/status/2010458961464746268" target="_blank" rel="noopener noreferrer" aria-label="9:09 PM · Jan 11, 2026"> <time datetime="2026-01-11T21:09:03.000Z"> 9:09 PM · Jan 11, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2010458961464746268" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 423 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>423</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2010458961464746268" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/ssijak/status/2010458961464746268" target="_blank" rel="noopener noreferrer"> <span> Read 20 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/alchemy-run/distilled-cloudflare"><code dir="auto">distilled-cloudflare</code></a> - A fully typed Cloudflare SDK for Effect, generated from the Cloudflare OpenAPI specification. Provides Effect-native bindings for R2, KV, Workers, Queues, Workflows, and DNS management. Project by <a href="https://x.com/samgoodwin89">Sam Goodwin</a> of <a href="https://github.com/alchemy-run">alchemy-run</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/lself1022/effer"><code dir="auto">effer</code></a> - An Effect-native UI library by <a href="https://github.com/lself1022">lself1022</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/Jobflow-io/effect-playwright"><code dir="auto">effect-playwright</code></a> - A TypeScript library that wraps Playwright for the Effect ecosystem, providing type-safe services and layers for browser automation and web scraping. Project by <a href="https://github.com/Jobflow-io">Jobflow-io</a>.</li> </ul> <p> </p> <ul> <li><a href="https://studiocms.dev/blog/v0-1-release">StudioCMS v0.1.0</a>, the first production-ready release, has been shipped! StudioCMS is an open-source CMS built on Astro that has redesigned its entire API, SDK, middleware, and utilities using Effect, achieving faster performance, better error handling, and an optimized caching system.</li> </ul> <p> </p> <div tabindex="-1"><h1 id="effect-content-update">Effect Content Update</h1><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p><strong>Effect Office Hours 12</strong> went live on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the <a href="https://x.com/EffectTS_/status/2011453304149348373">livestream on X(Twitter)</a>.</p> </li> <li> <p>Maxwell Brown and Tim Smart were live on X and Twitch with <em>ChEffect</em>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/2011575007366050228" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2011575007366050228" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2011575007366050228" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/2011575007366050228" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Working on ChEffect - A Local-First Meal Planning App written with Effect </span><a href="https://x.com/i/broadcasts/1MnxnPlNjzdGO" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/2011575007366050228" target="_blank" rel="noopener noreferrer" aria-label="11:03 PM · Jan 14, 2026"> <time datetime="2026-01-14T23:03:49.000Z"> 11:03 PM · Jan 14, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2011575007366050228" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 6 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>6</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2011575007366050228" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/2011575007366050228" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> <li> <p>Tim also started a new series about <strong>building an AI agent orchestrator powered by Effect</strong>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/2011936448488878433" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2011936448488878433" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2011936448488878433" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/2011936448488878433" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Working on HttpApi &amp; contentlayer with Effect </span><a href="https://x.com/i/broadcasts/1YqKDNeeLkYJV" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/2011936448488878433" target="_blank" rel="noopener noreferrer" aria-label="11:00 PM · Jan 15, 2026"> <time datetime="2026-01-15T23:00:03.000Z"> 11:00 PM · Jan 15, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2011936448488878433" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 13 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>13</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2011936448488878433" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/2011936448488878433" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> <li> <p><strong>Office Hours 11: Effect 4.0, Cluster &#x26; Workflow, Schema, Effect Institute, LLMs in Effect coding</strong> and <strong>ChEffect - Part 13: A Local-First Meal Planning App written with Effect &#x26; LiveStore</strong> are now on our YouTube Channel.</p> </li> </ul> <p> </p> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/2000913813756100778">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&#x26;l=en-GB">Apple Podcast</a>.</p> <p>We’ve published our seventh episode with Adam Rankin, CTO at <a href="https://www.joinwarp.com/">Warp</a>, who joined Johannes Schickling to talk about using Effect to bring structure and composability to a growing TypeScript codebase, enabling a small, fast-moving team to stay productive while shipping reliable payment &#x26; payroll systems.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p>A <strong>consumer music startup</strong> hiring for an Effect Backend Consultant + a full-time role based in NYC. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1457499793042575371">our Discord</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><a href="https://trysolid.com/"><strong>Solid</strong></a> is hiring its early engineering team (Bay Area). The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1455623052636459209">our Discord</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. 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Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/09/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/09/Effect Institute Official Launch. effect-sql-pg support by Drizzle. Effect Berlin Meetup 2. Effect Office Hours 11 and ChEffect 12. Fri, 09 Jan 2026 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5980+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5786">Add Cron.prev reverse iteration support</a> (Feature, next-minor)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5961">Doc: Clean up ZIO refs in Stream and Channel docs</a> (Documentation Update)</li> </ul> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5949">Ensure OpenAI headers are redacted</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5958">Regenerate @effect/ai-google from latest OpenAPI spec</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-cluster">Effect Cluster</h3><a aria-labelledby="effect-cluster" href="#effect-cluster"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5946">Fix HttpRunner double-slash routing</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5943">Ensure client is defined when catching error</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="general-chore">General Chore</h3><a aria-labelledby="general-chore" href="#general-chore"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5498">Chore: update TSTyche to v6.0.0-beta.4</a> (Optimization)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Kit Langton officially launched the first chapters of Effect Institute.🚀 <div> <article> <div> <a href="https://twitter.com/kitlangton/status/2008889797939802276" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/2008889797939802276" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/2008889797939802276" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/2008889797939802276" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>It is time → </span><a href="http://effect.institute" target="_blank" rel="noopener noreferrer">effect.institute</a><span>. 2026, the year of 𝚎𝚏𝚏𝚎𝚌𝚝. I'm extremely proud of how this turned out. There are many chapters to add, but I do hope you enjoy what's there so far. Let me know what you think. 🫡 </span></p> <div> <div> <div> <div style="width:unset;padding-bottom:77.36389684813753%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/2008889744994770944/img/_8MByk2ICv9oJUsG?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/2008889744994770944/vid/avc1/930x720/SeuM4Moth0hC-4C_.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/kitlangton/status/2008889797939802276" target="_blank" rel="noopener noreferrer" aria-label="1:13 PM · Jan 7, 2026"> <time datetime="2026-01-07T13:13:45.000Z"> 1:13 PM · Jan 7, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2008889797939802276" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 1.3K likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>1.3K</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2008889797939802276" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/2008889797939802276" target="_blank" rel="noopener noreferrer"> <span> Read 100 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Sigb up for the <a href="https://luma.com/xdpn0t7a">Effect Berlin Meetup #2</a> on January 29, 2026.</li> </ul> <p> </p> <ul> <li>Drizzle ORM <a href="https://github.com/drizzle-team/drizzle-orm/pull/5222">added @effect/sql-pg driver support</a> with a redesigned architecture for Effect-based async programming patterns.</li> </ul> <p> </p> <ul> <li>Prisma announced plans for first-class Effect integration. <div> <article> <div> <a href="https://twitter.com/prisma/status/2007477973645938818" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1932745231159443456/7IaY-d3Z_normal.jpg" alt="Prisma Postgres" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/prisma/status/2007477973645938818" target="_blank" rel="noopener noreferrer"> <div> <span title="Prisma Postgres">Prisma Postgres</span> </div> <div><svg viewBox="0 0 22 22" aria-label="Verified account" role="img"> <g> <linearGradient gradientUnits="userSpaceOnUse" id="0-a" x1="4.411" x2="18.083" y1="2.495" y2="21.508"> <stop offset="0" stop-color="#f4e72a"></stop> <stop offset=".539" stop-color="#cd8105"></stop> <stop offset=".68" stop-color="#cb7b00"></stop> <stop offset="1" stop-color="#f4ec26"></stop> <stop offset="1" stop-color="#f4e72a"></stop> </linearGradient> <linearGradient gradientUnits="userSpaceOnUse" id="0-b" x1="5.355" x2="16.361" y1="3.395" y2="19.133"> <stop offset="0" stop-color="#f9e87f"></stop> <stop offset=".406" stop-color="#e2b719"></stop> <stop offset=".989" stop-color="#e2b719"></stop> </linearGradient> <g clip-rule="evenodd" fill-rule="evenodd"> <path d="M13.324 3.848L11 1.6 8.676 3.848l-3.201-.453-.559 3.184L2.06 8.095 3.48 11l-1.42 2.904 2.856 1.516.559 3.184 3.201-.452L11 20.4l2.324-2.248 3.201.452.559-3.184 2.856-1.516L18.52 11l1.42-2.905-2.856-1.516-.559-3.184zm-7.09 7.575l3.428 3.428 5.683-6.206-1.347-1.247-4.4 4.795-2.072-2.072z" fill="url(#0-a)"></path> <path d="M13.101 4.533L11 2.5 8.899 4.533l-2.895-.41-.505 2.88-2.583 1.37L4.2 11l-1.284 2.627 2.583 1.37.505 2.88 2.895-.41L11 19.5l2.101-2.033 2.895.41.505-2.88 2.583-1.37L17.8 11l1.284-2.627-2.583-1.37-.505-2.88zm-6.868 6.89l3.429 3.428 5.683-6.206-1.347-1.247-4.4 4.795-2.072-2.072z" fill="url(#0-b)"></path> <path d="M6.233 11.423l3.429 3.428 5.65-6.17.038-.033-.005 1.398-5.683 6.206-3.429-3.429-.003-1.405.005.003z" fill="#d18800"></path> </g> </g> </svg></div> </a> <div> <a href="https://twitter.com/prisma/status/2007477973645938818" target="_blank" rel="noopener noreferrer"> <span title="@prisma">@prisma</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=prisma" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/prisma/status/2007477973645938818" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <a href="https://twitter.com/BryanMigliorisi/status/2007184660087091251" target="_blank" rel="noopener noreferrer">Replying to @BryanMigliorisi</a><p><span>Yes! We do plan to do first-class integration with Effect.</span></p> <div> <a href="https://twitter.com/prisma/status/2007477973645938818" target="_blank" rel="noopener noreferrer" aria-label="3:43 PM · Jan 3, 2026"> <time datetime="2026-01-03T15:43:40.000Z"> 3:43 PM · Jan 3, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2007477973645938818" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 45 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>45</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2007477973645938818" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/prisma/status/2007477973645938818" target="_blank" rel="noopener noreferrer"> <span> Read 6 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><strong>Goodbye TanStack Form: Schema-Driven Forms w/ Effect.ts</strong> by <a href="https://www.youtube.com/@lucas-barake">Lucas Barake</a>.</li> </ul> <p> </p> <ul> <li><a href="https://x.com/samgoodwin89">Sam Goodwin</a> built an Agent with Effect AI to discover missing error tags in AWS. <div> <article> <div> <a href="https://twitter.com/samgoodwin89/status/2007427212212088922" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1906123583988125698/D9tiXFMM_normal.jpg" alt="sam" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/samgoodwin89/status/2007427212212088922" target="_blank" rel="noopener noreferrer"> <div> <span title="sam">sam</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/samgoodwin89/status/2007427212212088922" target="_blank" rel="noopener noreferrer"> <span title="@samgoodwin89">@samgoodwin89</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=samgoodwin89" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/samgoodwin89/status/2007427212212088922" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>It turns out that even AWS doesn't properly document all of their errors. So I built an Agent with Effect/AI to discover missing error tags by invoking the API. Our AWS SDK is Effect-native, so it was trivial to build. This is not sped up:</span></p> <div> <div> <div> <div style="width:unset;padding-bottom:57.6923076923077%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/2007426995890839552/img/fZjImT7yDChU_4rm?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/2007426995890839552/vid/avc1/624x360/NopMlcKtfG557tdK.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/samgoodwin89/status/2007427212212088922" target="_blank" rel="noopener noreferrer" aria-label="12:21 PM · Jan 3, 2026"> <time datetime="2026-01-03T12:21:58.000Z"> 12:21 PM · Jan 3, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2007427212212088922" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 157 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>157</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2007427212212088922" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/samgoodwin89/status/2007427212212088922" target="_blank" rel="noopener noreferrer"> <span> Read 8 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Makisuo optimized <a href="https://github.com/HazelChat/hazel">Hazel</a> initial load speed using Effect tracing. Hazel is a local-first real-time collaborative chat platform built with Effect-TS, ElectricSQL, and React 19. <div> <article> <div> <a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1271783863614873600/DozTdIj7_normal.jpg" alt="Makisuo" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer"> <div> <span title="Makisuo">Makisuo</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer"> <span title="@makisuo">@makisuo</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=makisuo" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>most slow apps aren't actually slow. they're just doing one dumb thing at startup that blocks everything else. spent a bunch of time today optimizing the initial load speed of Hazel. quickly realized most of the time was spent validating the user session before it could even</span></p> <div> <div> <a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.25%"></div> <img src="https://pbs.twimg.com/media/G9v-eAHXkAAkOAu?format=jpg&name=small" alt="Image" draggable="true"> </a><a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.25%"></div> <img src="https://pbs.twimg.com/media/G9v-jZ_WEAABVUJ?format=jpg&name=small" alt="Image" draggable="true"> </a><a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.25%"></div> <img src="https://pbs.twimg.com/media/G9v-sbbXEAEa64F?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer" aria-label="3:55 PM · Jan 3, 2026"> <time datetime="2026-01-03T15:55:57.000Z"> 3:55 PM · Jan 3, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2007481063736475683" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 16 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>16</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2007481063736475683" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/makisuo/status/2007481063736475683" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Nir Tamir’s talk at NodeTLV ‘25 on <a href="https://www.youtube.com/watch?v=Y25Ih4VRfjg">smarter error handling with Effect</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/MateoKruk/effect-slack"><code dir="auto">effect-slack</code></a> - An Effect-native Slack SDK with built-in OpenTelemetry instrumentation, and smart retry mechanisms. Project by Mateo Kruk.</li> </ul> <p> </p> <ul> <li><a href="https://adamjosefus.github.io/fx-fetch/"><code dir="auto">fx-fetch</code></a>, an open source production-ready HTTP fetching library built with Effect. Project by Adam Josefus.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/RhysSullivan/create-epoch-app"><code dir="auto">create-epoch-app</code></a> - An opinionated full-stack starter template combining Effect, Convex, and Next.js 15 in a monorepo structure. Project by Rhys Sullivan.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/PatrickOgilvie/honertia"><code dir="auto">honertia</code></a> - An Inertia.js adapter for Hono that brings Laravel-style development patterns to Cloudflare Workers with Effect-based handlers. Project by Patrick Ogilvie.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/Handfish/effstate"><code dir="auto">effstate</code></a> - An Effect-based state machine library with type-safe transitions, dependency injection, and hierarchical state structures. Project by Handfish.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/OperationalFallacy/Unleaded"><code dir="auto">Unleaded</code></a> - An interactive CLI tool for searching and filtering car listings, built with Effect, Ink for terminal UI, and Effect Atom for state management. Project by <a href="https://github.com/OperationalFallacy">OperationalFallacy</a>.</li> </ul> <p> </p> <ul> <li><a href="https://www.twitch.tv/teej_dv">Teej_dv</a> live streamed some <a href="https://www.twitch.tv/videos/2663767675">Effect development</a> on his Twitch channel.</li> </ul> <p> </p> <div tabindex="-1"><h1 id="effect-content-update">Effect Content Update</h1><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p><strong>Effect Office Hours 11</strong> went live on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the <a href="https://x.com/EffectTS_/status/2008917561724092741">livestream on X(Twitter)</a></p> </li> <li> <p><strong>Office Hours 10: Library Design, Error Modeling and Propagation, Schema Usage, Service Design</strong> and <strong>ChEffect - Part 12: A Local-First App built w/ Effect &#x26; LiveStore</strong> are now on our YouTube Channel.</p> </li> </ul> <p> </p> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/2000913813756100778">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&#x26;l=en-GB">Apple Podcast</a>.</p> <p>We’ve published our seventh episode with Adam Rankin, CTO at <a href="https://www.joinwarp.com/">Warp</a>, who joined Johannes Schickling to talk about using Effect to bring structure and composability to a growing TypeScript codebase, enabling a small, fast-moving team to stay productive while shipping reliable payment &#x26; payroll systems.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p>A <strong>consumer music startup</strong> hiring for an Effect Backend Consultant + a full-time role based in NYC. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1457499793042575371">our Discord</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><a href="https://trysolid.com/"><strong>Solid</strong></a> is hiring its early engineering team (Bay Area). The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1455623052636459209">our Discord</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/02/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2026/01/02/Happy New Year! 🎉 Fri, 02 Jan 2026 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5920+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5938">Fix openai streaming decoding error when using provider webSearch tool</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5944">Fix Prompt.fromResponseParts when input contains a provider executed tool</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5936">Document subtle CORS middleware allowedHeaders behavior</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5940">Fix HttpServerResponse.fromWeb losing Content-Type header</a> (Bug Fix)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="happy-new-year-from-the-effect-team">Happy New Year from the Effect Team</h2><a aria-labelledby="happy-new-year-from-the-effect-team" href="#happy-new-year-from-the-effect-team"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Happy New Year! ✨ As we step into 2026, here’s a quick look back at what shaped Effect in 2025.</p> <p>We gathered at Effect Days in Italy, hosted community meetups across Europe and the US, and shipped major releases including the Effect AI SDK, Effect LSP, and early access to @effect/workflow. The team grew with Mattia Manzati and Kit Langton, and new learning resources like Visual Effect and Effect Solutions launched.</p> <p>Adoption continued across production systems at OpenRouter, Warp, Polar, Salesforce DevTools, Vercel Domains, and within the 𝕏 (Twitter) codebase, among others. We shared progress through podcast episodes and live coding, and closed the year with a community gift from terminal.shop that we’re very grateful for.</p> <p>For a deeper dive into what happened in 2025, check out our <a href="https://effect.website/blog/effect-2025-year-in-review/">year-in-review blog post</a>.</p> <p>Here’s to building even more in 2026!</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/2006692235077705742" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2006692235077705742" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2006692235077705742" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/2006692235077705742" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Happy New Year ✨ As we step into 2026, here’s a look back at what shaped Effect in 2025: We gathered in person at Effect Days in 🇮🇹Italy &amp; the community hosted meetups across: 🇫🇷 Paris &amp; Nice 🇩🇪 Hamburg, Munich &amp; Berlin 🇺🇸 NYC &amp; SF 🇦🇹 Vienna, 🇮🇹 Milan, Sardinia &amp; Sondrio 1/</span></p> <div> <a href="https://twitter.com/EffectTS_/status/2006692235077705742" target="_blank" rel="noopener noreferrer" aria-label="11:41 AM · Jan 1, 2026"> <time datetime="2026-01-01T11:41:26.000Z"> 11:41 AM · Jan 1, 2026 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2006692235077705742" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 49 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>49</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2006692235077705742" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/2006692235077705742" target="_blank" rel="noopener noreferrer"> <span> Read 4 replies </span> </a> </div> </article> </div> <p><em>The Effect Team</em></p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Dane Knecht shared his dev setup, which includes Effect deployed to Cloudflare. <div> <article> <div> <a href="https://twitter.com/dok2001/status/2005857510096281604" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1933364396434001920/nNinLkYf_normal.jpg" alt="Dane Knecht 🦭" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/dok2001/status/2005857510096281604" target="_blank" rel="noopener noreferrer"> <div> <span title="Dane Knecht 🦭">Dane Knecht 🦭</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/dok2001/status/2005857510096281604" target="_blank" rel="noopener noreferrer"> <span title="@dok2001">@dok2001</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=dok2001" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/dok2001/status/2005857510096281604" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>My new dev setup: Jujutsu (jj), </span><a href="https://twitter.com/mitchellh" target="_blank" rel="noopener noreferrer">@mitchellh</a><span>'s Ghostty, </span><a href="https://twitter.com/opencode" target="_blank" rel="noopener noreferrer">@opencode</a><span> with Opus 4.5, and Effect deployed to </span><a href="https://twitter.com/Cloudflare" target="_blank" rel="noopener noreferrer">@Cloudflare</a><span>. The only thing I miss from Claude Code is being able to use mobile app.</span></p> <div> <a href="https://twitter.com/dok2001/status/2005857510096281604" target="_blank" rel="noopener noreferrer" aria-label="4:24 AM · Dec 30, 2025"> <time datetime="2025-12-30T04:24:32.000Z"> 4:24 AM · Dec 30, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2005857510096281604" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 628 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>628</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2005857510096281604" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/dok2001/status/2005857510096281604" target="_blank" rel="noopener noreferrer"> <span> Read 43 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>A visual guide for <code dir="auto">Effect.all</code> by Kishore. <div> <article> <div> <a href="https://twitter.com/pkishorez/status/2005740882860114075" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1941424913790726145/pzvSUCzS_normal.jpg" alt="Kishore" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/pkishorez/status/2005740882860114075" target="_blank" rel="noopener noreferrer"> <div> <span title="Kishore">Kishore</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/pkishorez/status/2005740882860114075" target="_blank" rel="noopener noreferrer"> <span title="@pkishorez">@pkishorez</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=pkishorez" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/pkishorez/status/2005740882860114075" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>A visual guide to Effect.all link: </span><a href="https://kishore.app/blog/effect-all?utm_source=x" target="_blank" rel="noopener noreferrer">kishore.app/blog/effect-al…</a><span> </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a></p> <div> <div> <div> <div style="width:unset;padding-bottom:110.0763358778626%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/2005740579045662723/img/V3VaRAn26st4CxU8?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/2005740579045662723/vid/avc1/720x792/wVggKdJOPSzkgkdx.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/pkishorez/status/2005740882860114075" target="_blank" rel="noopener noreferrer" aria-label="8:41 PM · Dec 29, 2025"> <time datetime="2025-12-29T20:41:05.000Z"> 8:41 PM · Dec 29, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2005740882860114075" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 91 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>91</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2005740882860114075" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/pkishorez/status/2005740882860114075" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>The Warp team shipped their first customer-facing API in just 2 days using Effect and Drizzle ORM. <div> <article> <div> <a href="https://twitter.com/rankintweets/status/2006043524148449372" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1792558576717672448/5kQSLWND_normal.jpg" alt="Adam Rankin" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/rankintweets/status/2006043524148449372" target="_blank" rel="noopener noreferrer"> <div> <span title="Adam Rankin">Adam Rankin</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/rankintweets/status/2006043524148449372" target="_blank" rel="noopener noreferrer"> <span title="@rankintweets">@rankintweets</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=rankintweets" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/rankintweets/status/2006043524148449372" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Last week @ Warp we shipped our first customer-facing API. It took 2 engineers 2 days to build end to end with </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> and </span><a href="https://twitter.com/DrizzleORM" target="_blank" rel="noopener noreferrer">@DrizzleORM</a><span> . We made a repo with some of the patterns we like. Complete with: - Effect layers w/ Drizzle - Auto-updating docs - e2e types/brands/errors</span></p> <div> <div> <a href="https://twitter.com/rankintweets/status/2006043524148449372" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:45.22691705790297%"></div> <img src="https://pbs.twimg.com/media/G9bj6M4XUAEsE4S?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/rankintweets/status/2006043524148449372" target="_blank" rel="noopener noreferrer" aria-label="4:43 PM · Dec 30, 2025"> <time datetime="2025-12-30T16:43:41.000Z"> 4:43 PM · Dec 30, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2006043524148449372" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 265 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>265</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2006043524148449372" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/rankintweets/status/2006043524148449372" target="_blank" rel="noopener noreferrer"> <span> Read 9 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/nikelborm/effect-garden/tree/main/packages/effect-web-midi"><code dir="auto">effect-web-midi</code></a> - An Effect wrapper for the Web MIDI API that simplifies working with MIDI devices in web applications, featuring typed error handling and Effect streams for real-time MIDI event processing. Project by <a href="https://github.com/nikelborm">nikelborm</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/sogoiii/effect-streamdown-terminal"><code dir="auto">effect-streamdown-terminal</code></a> - A streaming markdown renderer for modern terminals built with Effect-TS, allowing content to appear incrementally as it’s received. Project by <a href="https://github.com/sogoiii">sogoiii</a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/2000913813756100778">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&#x26;l=en-GB">Apple Podcast</a>.</p> <p>We’ve published our seventh episode with Adam Rankin, CTO at <a href="https://www.joinwarp.com/">Warp</a>, who joined Johannes Schickling to talk about using Effect to bring structure and composability to a growing TypeScript codebase, enabling a small, fast-moving team to stay productive while shipping reliable payment &#x26; payroll systems.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><a href="https://trysolid.com/"><strong>Solid</strong></a> is hiring its early engineering team (Bay Area). The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1455623052636459209">our Discord</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/effect-2025-year-in-review/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/effect-2025-year-in-review/Global community events, major tooling like the Effect AI SDK, and rapidly growing adoption Thu, 01 Jan 2026 00:00:00 GMT<p>Here’s a look back at what shaped Effect in 2025.</p> <p> </p> <div tabindex="-1"><h3 id="community--events">Community &#x26; Events</h3><a aria-labelledby="community--events" href="#community--events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B9bEBZbwMv04e_zSbRNPKH6">Effect Days (🇮🇹 Italy)</a> — the 3-day in-person conference dedicated to the Effect ecosystem and community, with 17 talks and 2 workshops.</li> <li>Global meetups across Paris, Hamburg, Berlin, NYC, Vienna, San Francisco, Munich, Milan, Sardinia, and Sondrio. Subscribe to our <a href="https://luma.com/effect-community?k=c">community events calendar</a> for updates on future events.</li> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B_0hEiHT82cv-DotrtD6Bhi">Effect Office Hours 🔥</a> — recurring live sessions with maintainers and the community.</li> <li>Cause &#x26; Effect podcast episodes with developers using Effect in production: <ul> <li><a href="https://youtu.be/8lz9-0y58Jc">Michael Fester - CEO 14.ai</a></li> <li><a href="https://youtu.be/x2bUuOZ-htU">David Golightly - Staff eng at Masterclass</a></li> <li><a href="https://youtu.be/rPKohHGPqCY">Dillon Mulroy - Led the development of Vercel Domains</a></li> <li><a href="https://youtu.be/lFOHVZnJLew">Samuel Briole - CTO at Spiko</a></li> <li><a href="https://youtu.be/AVJIqQi11lM">Louis Vichy - CTO OpenRouter</a></li> <li><a href="https://youtu.be/zxCR6rG4snY">Adam Rankin - CTO Warp</a></li> </ul> </li> </ul> <p>Alongside events and media, the <a href="https://discord.gg/effect-ts">Effect Discord community</a> remained a constant: thousands of developers discussing real production problems, sharing experiences, helping each other, and shaping the direction of the ecosystem day-to-day.</p> <p> </p> <div tabindex="-1"><h3 id="team-growth">Team Growth</h3><a aria-labelledby="team-growth" href="#team-growth"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>This year, Mattia Manzati and Kit Langton joined the team, strengthening both ecosystem tooling and learning content. 🎉</p> <p> </p> <div tabindex="-1"><h3 id="ecosystem-releases">Ecosystem Releases</h3><a aria-labelledby="ecosystem-releases" href="#ecosystem-releases"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a>, bringing first-class abstractions for AI-native and agent-based systems</li> <li><a href="https://effect.website/docs/getting-started/devtools/">Developer tooling</a>: Effect LSP, VS Code / Cursor Extension.</li> <li><a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md">effect/workflow (alpha)</a> — durable, orchestrated workflows built on Effect’s runtime</li> <li><a href="https://github.com/tim-smart/effect-atom">effect-atom</a> — a reactive state management library for Effect.</li> </ul> <p> </p> <div tabindex="-1"><h3 id="education--learning">Education &#x26; Learning</h3><a aria-labelledby="education--learning" href="#education--learning"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://effect.kitlangton.com/">Visual Effect</a> &#x26; <a href="https://www.effect.solutions/">Effect Solutions</a> by Kit Langton.</li> <li><a href="https://effect.institute/">Effect Institute</a> launched and is currently in progress, with a focus on structured learning and long-term skill building. Join the dedicated channel on the <a href="https://discord.com/channels/795981131316985866/1449050466464956416">Discord community</a> to follow updates closely.</li> <li>Docs search functionality substantially improved, thanks to a better search experience powered by Mixedbread</li> <li>Lucas Barake’s course: <a href="https://lucasbarake.com/">Practical Effect</a></li> </ul> <p> </p> <div tabindex="-1"><h3 id="adoption--growth-milestones">Adoption &#x26; Growth Milestones</h3><a aria-labelledby="adoption--growth-milestones" href="#adoption--growth-milestones"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Some of the companies adopting or publicly using Effect this year include OpenRouter, Warp, Edge &#x26; Node, Polar, Salesforce DevTools, T3 Chat, Vercel Domains, and Effect also landed inside the 𝕏 (Twitter) codebase.</li> <li>Effect trended on GitHub 📈🚀, surpassed 6 million npm downloads per week, and crossed <a href="https://github.com/Effect-TS/effect">12,000 GitHub stars</a> — milestones we’re grateful for and that reflect sustained use.</li> </ul> <p> </p> <div tabindex="-1"><h3 id="content--media">Content &#x26; Media</h3><a aria-labelledby="content--media" href="#content--media"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p><strong>Effect YouTube content series:</strong></p> <ul> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B8OagJfQpsbIghPjM4UVEbo">Contentlayer with Effect</a></li> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B94dxogXtXyLjnhVjNIfQtK">Building ChEffect with LiveStore</a></li> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B_t1iWFsxYEj4_LguV9rInz">Effect Warehouse app</a></li> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B8bcBYZ7l4OijMczGVxWmAm">Twitch–Spotify integration</a></li> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B-LdKO8g54CgGF7kmzzooEN">Effect MCP</a></li> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B8b2W6ZxKkaarGmbPQG_XfI">API Integration for Google</a></li> <li><a href="https://www.youtube.com/playlist?list=PLDf3uQLaK2B-ObUBrXKgXAYCikKoVb-gh">Effect AI SDKs Refactor</a></li> </ul> <p><strong>Featured across major platforms:</strong></p> <ul> <li>Mentioned in the <a href="https://www.thoughtworks.com/radar/languages-and-frameworks/effect">Thoughtworks Technology Radar Vol 32</a> in the Languages and Framework section, with the Thoughtworks team highlighting that after using Effect, their team found no reason to go back.</li> <li><a href="https://www.youtube.com/watch?v=S2GChOwivwQ&#x26;t=51s">Matt Pocock’s video on why Effect “captured his heart”</a></li> <li><a href="https://www.youtube.com/watch?v=iLa0d8WF-ng&#x26;t=5s">Build Production-Ready AI Agents with TypeScript Effect &#x26; Amazon Bedrock</a> with James Ward &#x26; Maxwell Brown</li> <li><a href="https://www.youtube.com/watch?v=qYohvLtApmM&#x26;t=357s">devtools.fm</a> with Maxwell Brown</li> <li><a href="https://www.youtube.com/watch?v=NR_gJipShK8&#x26;t=659s">This library changed my life, it had such a big Effect on me</a>, Livestream with Kit Langton and TeeJ</li> <li><a href="https://www.youtube.com/watch?v=VR_MQH3opc8&#x26;t=182s">Effect: the Good Parts, <code dir="auto">use workflow</code>, and Vercel Domains</a> w/ Dillon Mulroy &#x26; Swyx</li> <li><a href="https://www.youtube.com/watch?v=8KmFwsj9gbI&#x26;t=2s">Building AI applications with Effect + Netlify</a> with Maxwell Brown</li> </ul> <p> </p> <div tabindex="-1"><h3 id="last-but-not-least">Last but not least:</h3><a aria-labelledby="last-but-not-least" href="#last-but-not-least"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>We ended the year with a <a href="https://x.com/MichaelArnaldi/status/2003510051231965459?s=20">Christmas gift</a> from the <a href="https://terminal.shop/">terminal.shop</a> for the Effect community, which we’ll use to give back and support community-led initiatives.</li> <li>And, of course… <a href="https://justfuckinguseeffect.dev/">justfuckinguseeffect.dev</a> — probably our most honest CTA to date. 😄</li> </ul> <hr> <p>2026 will be about continuing the work: improving the core, expanding the ecosystem, and supporting production use.</p>Miscellaneoushttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/27/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/27/🎄 Xmas gift from the terminal.shop for the Effect community! effect-distributed-lock by Ethan Niser. Sat, 27 Dec 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5920+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5928">Regenerate Open Router Schemas</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5931">Fix accumulation of response parts in Chat.streamText</a> (Bug Fix)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="happy-holidays-from-the-effect-team">Happy Holidays from the Effect Team</h2><a aria-labelledby="happy-holidays-from-the-effect-team" href="#happy-holidays-from-the-effect-team"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>As the year wraps up, a big thank you to everyone in the Effect community.</p> <p>Whether you’ve been building in production, experimenting, or helping others on Discord, we’re grateful to have you with us.</p> <p>Wishing you a restful holiday season and a great start to 2026. Excited for what’s ahead.</p> <p><em>The Effect Team</em></p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Many thanks to teej &amp; ThePrimeagen from the <a href="https://www.terminal.shop/">terminal</a> for choosing to donate to Effect during their last Xmas Stream. <div> <article> <div> <a href="https://twitter.com/MichaelArnaldi/status/2003510051231965459" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1232338149340319751/Ln9nNWyk_normal.jpg" alt="Michael Arnaldi" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/MichaelArnaldi/status/2003510051231965459" target="_blank" rel="noopener noreferrer"> <div> <span title="Michael Arnaldi">Michael Arnaldi</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/MichaelArnaldi/status/2003510051231965459" target="_blank" rel="noopener noreferrer"> <span title="@MichaelArnaldi">@MichaelArnaldi</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=MichaelArnaldi" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/MichaelArnaldi/status/2003510051231965459" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>We got a 5k x-mas gift from </span><a href="https://twitter.com/terminaldotshop" target="_blank" rel="noopener noreferrer">@terminaldotshop</a><span>! Thanks!</span></p> <div> <article> <div> <a href="https://twitter.com/kitlangton/status/2003487683813998821" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="20" height="20"> </div> </a> <div> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> <div> <span title="@kitlangton">@kitlangton</span> </div> </div> </div> <p><span>HOLY SH*T </span><span>@teej_dv</span><span> IS DOING SANTA TO </span><span>@EffectTS_</span><span> </span><span>twitch.tv/videos/2650428…</span></p> <div> <div> <div> <div style="width:unset;padding-bottom:57.429718875502004%"></div> <video poster="https://pbs.twimg.com/tweet_video_thumb/G83Rba8XsAAeD9-?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/tweet_video/G83Rba8XsAAeD9-.mp4" type="video/mp4"> </video> </div> </div> </div> </article> </div><div> <a href="https://twitter.com/MichaelArnaldi/status/2003510051231965459" target="_blank" rel="noopener noreferrer" aria-label="4:56 PM · Dec 23, 2025"> <time datetime="2025-12-23T16:56:34.000Z"> 4:56 PM · Dec 23, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2003510051231965459" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 31 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>31</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2003510051231965459" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/MichaelArnaldi/status/2003510051231965459" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/ethanniser/effect-distributed-lock"><code dir="auto">effect-distributed-lock</code></a> a distributed semaphore library for Effect with pluggable backends. Project by Ethan Niser. <div> <article> <div> <a href="https://twitter.com/ethanniser/status/2003264271850029334" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1899990645839708160/t8JNKzsW_normal.jpg" alt="Ethan Niser" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/ethanniser/status/2003264271850029334" target="_blank" rel="noopener noreferrer"> <div> <span title="Ethan Niser">Ethan Niser</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/ethanniser/status/2003264271850029334" target="_blank" rel="noopener noreferrer"> <span title="@ethanniser">@ethanniser</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=ethanniser" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/ethanniser/status/2003264271850029334" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>introducing effect-distributed-lock its like Effect.semaphore but distributed configurable and backend agnostic (includes redis ootb)</span></p> <div> <div> <a href="https://twitter.com/ethanniser/status/2003264271850029334" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:71.35922330097087%"></div> <img src="https://pbs.twimg.com/media/G80GCcAWQAAB8-G?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/ethanniser/status/2003264271850029334" target="_blank" rel="noopener noreferrer" aria-label="12:39 AM · Dec 23, 2025"> <time datetime="2025-12-23T00:39:55.000Z"> 12:39 AM · Dec 23, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2003264271850029334" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 248 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>248</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2003264271850029334" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/ethanniser/status/2003264271850029334" target="_blank" rel="noopener noreferrer"> <span> Read 8 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/PaulJPhilp/EffectPatterns">The Effect Patterns Hub</a> has been updated to v1.0.0. Project by <a href="https://github.com/PaulJPhilp">Paul Philp</a></li> </ul> <p> </p> <ul> <li>More improvements to <code dir="auto">create-tui</code> using Effect, by Matt Simpson. <div> <article> <div> <a href="https://twitter.com/msmps_/status/2002388136433684924" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1833525788123013120/29tqrkwf_normal.jpg" alt="Matt Simpson" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/msmps_/status/2002388136433684924" target="_blank" rel="noopener noreferrer"> <div> <span title="Matt Simpson">Matt Simpson</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/msmps_/status/2002388136433684924" target="_blank" rel="noopener noreferrer"> <span title="@msmps_">@msmps_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=msmps_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/msmps_/status/2002388136433684924" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>shipped a bunch of improvements to create-tui! the easiest way to get started with opentui - use any repo as a template (owner/repo or full url) - better error messages with helpful hints - more... using </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> has made this so easy to build/refine $ bunx create-tui@latest</span></p> <div> <div> <div> <div style="width:unset;padding-bottom:56.25%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/2002385278690856960/img/le9tZ8Vs3OOoduVb?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/2002385278690856960/vid/avc1/1280x720/_bNMnhwpinbD0tHV.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/msmps_/status/2002388136433684924" target="_blank" rel="noopener noreferrer" aria-label="2:38 PM · Dec 20, 2025"> <time datetime="2025-12-20T14:38:28.000Z"> 2:38 PM · Dec 20, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2002388136433684924" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 16 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>16</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2002388136433684924" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/msmps_/status/2002388136433684924" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/2000913813756100778">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&#x26;l=en-GB">Apple Podcast</a>.</p> <p>We’ve published our seventh episode with Adam Rankin, CTO at <a href="https://www.joinwarp.com/">Warp</a>, who joined Johannes Schickling to talk about using Effect to bring structure and composability to a growing TypeScript codebase, enabling a small, fast-moving team to stay productive while shipping reliable payment &#x26; payroll systems.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/19/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/19/Cause & Effect 7 with Adam Rankin, CTO at Warp. Effect Office Hours 10. justfuckinguseeffect.dev. Fri, 19 Dec 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5900+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Another sneak peek of an upcoming Schema V4 feature from Giulio Canti: <strong>sending a subset of Schemas over the wire and restoring it</strong>.</p> <div> <article> <div> <a href="https://twitter.com/GiulioCanti/status/2000622553715663314" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/507058995845017600/c0OWECjS_normal.png" alt="Giulio Canti" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/GiulioCanti/status/2000622553715663314" target="_blank" rel="noopener noreferrer"> <div> <span title="Giulio Canti">Giulio Canti</span> </div> </a> <div> <a href="https://twitter.com/GiulioCanti/status/2000622553715663314" target="_blank" rel="noopener noreferrer"> <span title="@GiulioCanti">@GiulioCanti</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=GiulioCanti" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/GiulioCanti/status/2000622553715663314" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Ok, I have an initial proof of concept for sending a subset of schemas over the wire and restoring it</span></p> <div> <div> <a href="https://twitter.com/GiulioCanti/status/2000622553715663314" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:132.1279554937413%"></div> <img src="https://pbs.twimg.com/media/G8Oi0QQW8AMeZhS?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/GiulioCanti/status/2000622553715663314" target="_blank" rel="noopener noreferrer" aria-label="5:42 PM · Dec 15, 2025"> <time datetime="2025-12-15T17:42:41.000Z"> 5:42 PM · Dec 15, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2000622553715663314" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 102 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>102</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2000622553715663314" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/GiulioCanti/status/2000622553715663314" target="_blank" rel="noopener noreferrer"> <span> Read 9 replies </span> </a> </div> </article> </div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5897">Fix: do not use performance.now if it’s not available</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5910">Add typeConstructor annotation for Schema</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5911">Add test for ensuring typeConstructor is attached</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5924">Fix(effect): respect times: 0 in Effect.retry options</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5920">Add type-level utils to asserting layer types</a> (Feature, next-minor)</li> </ul> <div tabindex="-1"><h3 id="effect-cli">Effect CLI</h3><a aria-labelledby="effect-cli" href="#effect-cli"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5853">Handle executable paths with spaces in CLI arguments</a> (Bug Fix )</li> </ul> <div tabindex="-1"><h3 id="effect-opentelemetry">Effect Opentelemetry</h3><a aria-labelledby="effect-opentelemetry" href="#effect-opentelemetry"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5890">Fix Tracer.currentOtelSpan to work with OTLP module</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5902">Add HttpApp.fromWebHandler</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5917">Support non-errors in HttpClient.retryTransient</a> (Feature)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast--episode-7">Cause &#x26; Effect Podcast | Episode #7</h2><a aria-labelledby="cause--effect-podcast--episode-7" href="#cause--effect-podcast--episode-7"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p><strong>Reliable Payroll Systems in TypeScript with Effect</strong></p> <p>In this episode, Johannes Schickling talks with Adam Rankin, CTO at <a href="https://www.joinwarp.com/">Warp</a>, about using Effect to bring structure and composability to a growing TypeScript codebase, enabling a small, fast-moving team to stay productive while shipping reliable payment &#x26; payroll systems.</p> <p>Cause &#x26; Effect features stories from software engineers and companies that use Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and benefits of integrating Effect into their tech stack.</p> <p>The Cause &#x26; Effect podcast is hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/2000913813756100778">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&#x26;l=en-GB">Apple Podcast</a>.</p> <p> </p> <div tabindex="-1"><h2 id="community-events">Community Events</h2><a aria-labelledby="community-events" href="#community-events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>This week, we wrapped up our final meetup of the year in Vienna, featuring talks by <a href="https://x.com/MattiaManzati">Mattia Manzati</a> and <a href="https://x.com/thefubhy">Sebastian Lorenz</a> on error handling and using Effect on the frontend.</p> <p>To stay updated about future events, visit our <a href="https://luma.com/effect-community">Effect Community Events calendar</a> and subscribe for updates.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Watch out for an invitation email from Kit Langton to access the <a href="https://www.effect.institute/chapters">Effect Institute</a> lessons. If you haven’t signed up yet, make sure to do so at the <a href="https://www.effect.institute/chapters">Effect Institute</a> website. <div> <article> <div> <a href="https://twitter.com/futur_panda/status/2000231110056591739" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1617162205786406912/fIxe5tB4_normal.jpg" alt="Futur Panda" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/futur_panda/status/2000231110056591739" target="_blank" rel="noopener noreferrer"> <div> <span title="Futur Panda">Futur Panda</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/futur_panda/status/2000231110056591739" target="_blank" rel="noopener noreferrer"> <span title="@futur_panda">@futur_panda</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=futur_panda" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/futur_panda/status/2000231110056591739" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Let's go</span></p> <div> <div> <a href="https://twitter.com/futur_panda/status/2000231110056591739" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:47.02886247877759%"></div> <img src="https://pbs.twimg.com/media/G8I_kn9W4AYYgCD?format=png&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/futur_panda/status/2000231110056591739" target="_blank" rel="noopener noreferrer" aria-label="3:47 PM · Dec 14, 2025"> <time datetime="2025-12-14T15:47:13.000Z"> 3:47 PM · Dec 14, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2000231110056591739" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 18 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>18</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2000231110056591739" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/futur_panda/status/2000231110056591739" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/effect-ak/tg-bot-client">tg-bot-client</a> a Telegram Bot API client with a peer dependency on Effect. Project by <a href="https://github.com/kondaurovDev">kondaurovDev</a>.</li> </ul> <p> </p> <ul> <li><a href="https://studiocms.dev/">StudioCMS</a> released the <a href="https://studiocms.dev/blog/beta-31-release">StudioCMS Beta.31: From Drizzle to Kysely</a> update. Powered by Effect.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/adamjosefus/fx-fetch"><code dir="auto">fx-fetch</code></a> a production-ready solution for safe &#x26; simple HTTP fetching built with Effect. Project by <a href="https://github.com/adamjosefus">Adam Josefus</a></li> </ul> <p> </p> <ul> <li>We 🤍 <a href="https://x.com/samgoodwin89">Sam Goodwin</a>. <div> <article> <div> <a href="https://twitter.com/samgoodwin89/status/2001602798086246506" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1906123583988125698/D9tiXFMM_normal.jpg" alt="sam" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/samgoodwin89/status/2001602798086246506" target="_blank" rel="noopener noreferrer"> <div> <span title="sam">sam</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/samgoodwin89/status/2001602798086246506" target="_blank" rel="noopener noreferrer"> <span title="@samgoodwin89">@samgoodwin89</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=samgoodwin89" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/samgoodwin89/status/2001602798086246506" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>I now have roughly 100 tests for all the different ways a plan can fail and then recover. </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> makes this so damn easy to do, check it out: This `fail` utility can inject failures into resource providers, but only in the context of the passed in Effect.</span></p> <div> <div> <a href="https://twitter.com/samgoodwin89/status/2001602798086246506" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:31.724137931034484%"></div> <img src="https://pbs.twimg.com/media/G8ceQ0caEAACOqw?format=png&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <article> <div> <a href="https://twitter.com/samgoodwin89/status/2001600222800347409" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1906123583988125698/D9tiXFMM_normal.jpg" alt="sam" width="20" height="20"> </div> </a> <div> <div> <span title="sam">sam</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> <div> <span title="@samgoodwin89">@samgoodwin89</span> </div> </div> </div> <p><span>Have been chipping away on Alchemy-effect&#39;s IaC engine while traveling and just landed huge improvements to durability and convergence. Everything except rollbacks are now implemented and it can recover from complicated crashes at any point while applying a plan.</span></p> </article> </div><div> <a href="https://twitter.com/samgoodwin89/status/2001602798086246506" target="_blank" rel="noopener noreferrer" aria-label="10:37 AM · Dec 18, 2025"> <time datetime="2025-12-18T10:37:49.000Z"> 10:37 AM · Dec 18, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2001602798086246506" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 104 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>104</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2001602798086246506" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/samgoodwin89/status/2001602798086246506" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Last but not least: <a href="https://justfuckinguseeffect.dev/">https://justfuckinguseeffect.dev/</a> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/2001964779054026791" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2001964779054026791" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2001964779054026791" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/2001964779054026791" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><a href="https://justfuckinguseeffect.dev/" target="_blank" rel="noopener noreferrer">justfuckinguseeffect.dev</a></p> <div> <div> <a href="https://twitter.com/EffectTS_/status/2001964779054026791" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:100%"></div> <img src="https://pbs.twimg.com/media/G8hkNlfWgAAyE8F?format=jpg&name=small" alt="Just Fucking Use Effect You've tried everything else. The 47 npm packages. The spaghetti try-catch blocks. The &#34;it works on my machine&#34; deployments. It's time to stop coping." draggable="true"> </a> </div> </div><div> <article> <div> <a href="https://twitter.com/rxssula/status/2001592620833968148" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2008912136760668160/yFxXCC7T_normal.jpg" alt="rassul" width="20" height="20"> </div> </a> <div> <div> <span title="rassul">rassul</span> </div> <div> <span title="@rxssula">@rxssula</span> </div> </div> </div> <p><span>Patiently waiting for </span><span>justfuckinguseeffect.com</span></p> </article> </div><div> <a href="https://twitter.com/EffectTS_/status/2001964779054026791" target="_blank" rel="noopener noreferrer" aria-label="10:36 AM · Dec 19, 2025"> <time datetime="2025-12-19T10:36:12.000Z"> 10:36 AM · Dec 19, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2001964779054026791" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 1.3K likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>1.3K</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2001964779054026791" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/2001964779054026791" target="_blank" rel="noopener noreferrer"> <span> Read 43 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p>The 10th episode of <strong>Effect Office Hours</strong> went live on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the <a href="https://x.com/EffectTS_/status/2001306681670860828">livestream on X(Twitter)</a></p> </li> <li> <p>Maxwell Brown and Tim Smart were live on X and Twitch with <em>ChEffect</em>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/2001414603943919929" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2001414603943919929" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/2001414603943919929" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/2001414603943919929" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Working on ChEffect - A Local-First Meal Planning App written with Effect </span><a href="https://x.com/i/broadcasts/1OyJAjpXrLoxb" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/2001414603943919929" target="_blank" rel="noopener noreferrer" aria-label="10:10 PM · Dec 17, 2025"> <time datetime="2025-12-17T22:10:00.000Z"> 10:10 PM · Dec 17, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=2001414603943919929" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 15 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>15</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=2001414603943919929" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/2001414603943919929" target="_blank" rel="noopener noreferrer"> <span> Read 3 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/12/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/12/Effect Institute by Kit Langton. The Case for Effect by Ryan Hunter. More Effect videos by Lucas Barake. Fri, 12 Dec 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5850+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More upcoming features in Effect 4.0: we made it even simpler to connect apps to observability tools.</p> <div> <article> <div> <a href="https://twitter.com/imax153/status/1998069311714336922" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1517464679337058307/cIB1-Gkx_normal.jpg" alt="Maxwell Brown" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/imax153/status/1998069311714336922" target="_blank" rel="noopener noreferrer"> <div> <span title="Maxwell Brown">Maxwell Brown</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/imax153/status/1998069311714336922" target="_blank" rel="noopener noreferrer"> <span title="@imax153">@imax153</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=imax153" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/imax153/status/1998069311714336922" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect has always worked well with OpenTelemetry. In Effect 4.0, we’re making it even easier to connect your app to the observability tools you already use. For example, adding a Prometheus-scrapable endpoint to your HTTP server now takes just one line of code:</span></p> <div> <div> <a href="https://twitter.com/imax153/status/1998069311714336922" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:39.22872340425532%"></div> <img src="https://pbs.twimg.com/media/G7qRJPeXoAMAwDC?format=jpg&name=small" alt="Code demonstrating creation of a Layer which sets up a Prometheus metrics endpoint for an Effect application." draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/imax153/status/1998069311714336922" target="_blank" rel="noopener noreferrer" aria-label="4:37 PM · Dec 8, 2025"> <time datetime="2025-12-08T16:37:00.000Z"> 4:37 PM · Dec 8, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1998069311714336922" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 190 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>190</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1998069311714336922" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/imax153/status/1998069311714336922" target="_blank" rel="noopener noreferrer"> <span> Read 8 replies </span> </a> </div> </article> </div> <p><a href="https://github.com/Effect-TS/effect-smol/pull/800">StandardAST module</a>, a standard, introspectable way to represent a schema without functions, will be part of Schema v4.</p> <div> <article> <div> <a href="https://twitter.com/GiulioCanti/status/1998656408850481405" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/507058995845017600/c0OWECjS_normal.png" alt="Giulio Canti" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/GiulioCanti/status/1998656408850481405" target="_blank" rel="noopener noreferrer"> <div> <span title="Giulio Canti">Giulio Canti</span> </div> </a> <div> <a href="https://twitter.com/GiulioCanti/status/1998656408850481405" target="_blank" rel="noopener noreferrer"> <span title="@GiulioCanti">@GiulioCanti</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=GiulioCanti" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/GiulioCanti/status/1998656408850481405" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>i have big plans for schema v4...</span></p> <div> <div> <a href="https://twitter.com/GiulioCanti/status/1998656408850481405" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:100%"></div> <img src="https://pbs.twimg.com/media/G7ynCIGW8AAruUa?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/GiulioCanti/status/1998656408850481405" target="_blank" rel="noopener noreferrer" aria-label="7:29 AM · Dec 10, 2025"> <time datetime="2025-12-10T07:29:55.000Z"> 7:29 AM · Dec 10, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1998656408850481405" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 78 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>78</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1998656408850481405" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/GiulioCanti/status/1998656408850481405" target="_blank" rel="noopener noreferrer"> <span> Read 6 replies </span> </a> </div> </article> </div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5875">Fix the arbitrary generator for BigDecimal to allow negative scales</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5874">Fix NoSuchElementException instantiation in fastPath in FiberRuntime</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5878">Fix(hash/equal): prevent defects with invalid date</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5885">JSONSchema: add missing options for target JSON Schema version in make function</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5888">Filter non-JSON values from schema examples and defaults</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5891">Add cache point support for user and tool messages in bedrock</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5799">Fix(ai-openrouter): Add support for google-gemini-v1 reasoning format</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5834">Fix: Fixed “oneOf” toolChoice for google language model</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5879">Fix HttpApp stream flaky test</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5792">Docs(platform): clarify FileSystem.watch recursive option behavior</a> (Documentation Update)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5896">Add basic apis for converting to web Request/Response</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5880">Ensure no more Activites are attempted before suspending</a> (Bug Fix)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-events">Community Events</h2><a aria-labelledby="community-events" href="#community-events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Our upcoming <a href="https://luma.com/rc84shks">Effect Vienna 🇦🇹</a> Meetup on December 18th will feature talks by Mattia Manzati and Sebastian Lorenz. <a href="https://luma.com/rc84shks">Join the meetup!</a></p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1998373678451671325" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1998373678451671325" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1998373678451671325" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1998373678451671325" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Talks at the upcoming Effect Vienna Meetup 🇦🇹​: → Error Handling &amp; Effectful Programming in TypeScript with Effect by </span><a href="https://twitter.com/MattiaManzati" target="_blank" rel="noopener noreferrer">@MattiaManzati</a><span> ​ → Effect on the Frontend by </span><a href="https://twitter.com/thefubhy" target="_blank" rel="noopener noreferrer">@thefubhy</a><span> Join us on December 18th at 18.30 ⤵️ </span><a href="https://luma.com/rc84shks" target="_blank" rel="noopener noreferrer">luma.com/rc84shks</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1998373678451671325" target="_blank" rel="noopener noreferrer" aria-label="12:46 PM · Dec 9, 2025"> <time datetime="2025-12-09T12:46:27.000Z"> 12:46 PM · Dec 9, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1998373678451671325" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 13 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>13</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1998373678451671325" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1998373678451671325" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p>To stay updated about future events, visit our <a href="https://luma.com/effect-community">Effect Community Events calendar</a> and subscribe for updates.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Sign up for <a href="https://www.effect.institute/chapters">Effect Institute</a>, the upcoming Effect tutorial series by Kit Langton. <div> <article> <div> <a href="https://twitter.com/kitlangton/status/1997656337778667587" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/1997656337778667587" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/1997656337778667587" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/1997656337778667587" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Take the effect pill → </span><a href="http://effect.institute" target="_blank" rel="noopener noreferrer">effect.institute</a></p> <div> <div> <div> <div style="width:unset;padding-bottom:81.50594451783356%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/1997506312477814784/img/5bo9Keldr-d2VQyp?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/1997506312477814784/vid/avc1/882x720/8lQFJQvryuSdoFwZ.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/kitlangton/status/1997656337778667587" target="_blank" rel="noopener noreferrer" aria-label="1:16 PM · Dec 7, 2025"> <time datetime="2025-12-07T13:16:00.000Z"> 1:16 PM · Dec 7, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1997656337778667587" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 651 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>651</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1997656337778667587" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/1997656337778667587" target="_blank" rel="noopener noreferrer"> <span> Read 30 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://ryanhunter.io/the-case-for-effect/">The Case for Effect</a>, article by Ryan Hunter.</li> </ul> <p> </p> <ul> <li><strong>File Uploads in React with Effect-TS</strong> &amp; <strong>TanStack Start with Effect-TS &amp; Effect Atom</strong> by Lucas Barake. </li> </ul> <p> </p> <ul> <li>A native Effect driver from the Drizzle team. <div> <article> <div> <a href="https://twitter.com/DrizzleORM/status/1997775967536742460" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1924491686622658561/3MiAto8o_normal.jpg" alt="Drizzle ORM" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/DrizzleORM/status/1997775967536742460" target="_blank" rel="noopener noreferrer"> <div> <span title="Drizzle ORM">Drizzle ORM</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/DrizzleORM/status/1997775967536742460" target="_blank" rel="noopener noreferrer"> <span title="@DrizzleORM">@DrizzleORM</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=DrizzleORM" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/DrizzleORM/status/1997775967536742460" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <a href="https://twitter.com/pyrons_/status/1997775450576425081" target="_blank" rel="noopener noreferrer">Replying to @pyrons_</a><p><span>yes, we are already building a native Effect driver</span></p> <div> <a href="https://twitter.com/DrizzleORM/status/1997775967536742460" target="_blank" rel="noopener noreferrer" aria-label="9:11 PM · Dec 7, 2025"> <time datetime="2025-12-07T21:11:22.000Z"> 9:11 PM · Dec 7, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1997775967536742460" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 158 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>158</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1997775967536742460" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/DrizzleORM/status/1997775967536742460" target="_blank" rel="noopener noreferrer"> <span> Read 9 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/PaulJPhilp/effect-regex"><code dir="auto">effect-regex</code></a>, a monorepo containing a regex processing CLI tool built with the Effect framework, alongside a Bun-based root workspace. Project by Paul Philp.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/Makisuo/effect-rpc-tanstack-devtools">effect-rpc-tanstack-devtools</a> - Developer tools for Effect RPC that integrate with TanStack Devtools. Project by Makisuo.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p>Maxwell Brown and Tim Smart were live on X and Twitch with <em>ChEffect</em>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1998881358186426484" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1998881358186426484" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1998881358186426484" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1998881358186426484" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Working on ChEffect - A Local-First Meal Planning App written with Effect </span><a href="https://x.com/i/broadcasts/1dRKZaOjkOgxB" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/1998881358186426484" target="_blank" rel="noopener noreferrer" aria-label="10:23 PM · Dec 10, 2025"> <time datetime="2025-12-10T22:23:47.000Z"> 10:23 PM · Dec 10, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1998881358186426484" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 15 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>15</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1998881358186426484" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1998881358186426484" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> <li> <p><strong>ChEffect - Part 11: A Local-First App built w/ Effect &#x26; LiveStore</strong> is now on our YouTube Channel.</p> </li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1988255926743093386">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/2E525BrMXFVfXIOGk0QIM9">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/inside-openrouters-tech-stack-and-use-of-effect-6/id1781879869?i=1000736256230">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and the benefits of integrating Effect into their tech stack.</p> <p>We’ve published our sixth episode with Louis Vichy, co-founder of <a href="https://openrouter.ai/">OpenRouter</a>, who joined Johannes Schickling and Michael Arnaldi to talk about OpenRouter’s TypeScript stack, their internal tooling powered by Effect, and the engineering challenges of scaling an AI platform processing trillions of tokens weekly.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Magentus</strong>: <a href="https://www.magentus.com/career/genai-solutions-engineer/?r=a">GenAI Solutions Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/05/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/12/05/Advent of Effect. SvelteKit and Effect with Dillon Mulroy. New ChEffect episodes. Fri, 05 Dec 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5800+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5859">RcMap: support dynamic idleTimeToLive values per key</a> (Feature, next-minor)</li> </ul> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5849">Update generated OpenRouter definitions and fix logprob schema</a> (Refactor, Bug Fix, Optimization)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5850">Update generated OpenAI schema definitions</a> (Feature, Optimization)</li> </ul> <div tabindex="-1"><h3 id="effect-experimental">Effect Experimental</h3><a aria-labelledby="effect-experimental" href="#effect-experimental"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5837">Support idempotent offers to PersistedQueue</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5847">Ensure PersistedQueue memory driver removes items</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5864">Ensure Devtools Tracer does not cut off span options</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-opentelemetry">Effect Opentelemetry</h3><a aria-labelledby="effect-opentelemetry" href="#effect-opentelemetry"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5863">Widen otel logs peer dep range</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5835">Consider clean http interrupts (already responded) as successful responses</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5837">Support idempotent offers to PersistedQueue</a> (Improvement)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5837">Support idempotent offers to PersistedQueue</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5846">Add Workflow.scope, a seperate Scope that only closes on completion</a> (Feature)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-events">Community Events</h2><a aria-labelledby="community-events" href="#community-events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t miss our upcoming <a href="https://luma.com/rc84shks">Effect Vienna 🇦🇹</a> Meetup on December 18, organized by Sebastian Lorenz.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1995842723845443908" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1995842723845443908" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1995842723845443908" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1995842723845443908" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Our next in-person meetup is going to be in Vienna 🇦🇹 → Thursday, December 18 | 18:30 → LEAN-CODERS Sign up below: </span><a href="https://luma.com/rc84shks" target="_blank" rel="noopener noreferrer">luma.com/rc84shks</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1995842723845443908" target="_blank" rel="noopener noreferrer" aria-label="1:09 PM · Dec 2, 2025"> <time datetime="2025-12-02T13:09:20.000Z"> 1:09 PM · Dec 2, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1995842723845443908" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 23 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>23</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1995842723845443908" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1995842723845443908" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> <p>To stay informed about future events, visit our <a href="https://luma.com/effect-community">Effect Community Events calendar</a> and subscribe for updates.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://adventofeffect.com">Advent of Effect</a> is in progress! Join our Discord to solve the <strong>Advent of Code</strong> riddles with Effect and post your solutions in our dedicated <a href="https://discord.com/channels/795981131316985866/1445024451497299968"><code dir="auto">advent-of-effect</code></a> channel. <div> <article> <div> <a href="https://twitter.com/kitlangton/status/1995487318442975388" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/1995487318442975388" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/1995487318442975388" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/1995487318442975388" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>the time has come </span><a href="https://adventofeffect.com" target="_blank" rel="noopener noreferrer">adventofeffect.com</a></p> <div> <a href="https://twitter.com/kitlangton/status/1995487318442975388" target="_blank" rel="noopener noreferrer" aria-label="1:37 PM · Dec 1, 2025"> <time datetime="2025-12-01T13:37:05.000Z"> 1:37 PM · Dec 1, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1995487318442975388" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 123 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>123</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1995487318442975388" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/1995487318442975388" target="_blank" rel="noopener noreferrer"> <span> Read 7 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Kit Langton gave a sneak peek of the upcoming <code dir="auto">spanopticon</code>, a TUI OTEL visualizer for Effect programs. <div> <article> <div> <a href="https://twitter.com/kitlangton/status/1994799261406695946" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/1994799261406695946" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/1994799261406695946" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/1994799261406695946" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>𝚜𝚙𝚊𝚗𝚘𝚙𝚝𝚒𝚌𝚘𝚗 ← 👀 TUI OTEL visualizer for Effect programs. Coming soon. </span></p> <div> <div> <div> <div style="width:unset;padding-bottom:75.42972699696664%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/1994798375682650112/img/MoDpYgasWjtNKbdi?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/1994798375682650112/vid/avc1/954x720/zbVp64b6Mj-ydQLo.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/kitlangton/status/1994799261406695946" target="_blank" rel="noopener noreferrer" aria-label="4:03 PM · Nov 29, 2025"> <time datetime="2025-11-29T16:03:00.000Z"> 4:03 PM · Nov 29, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1994799261406695946" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 212 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>212</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1994799261406695946" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/1994799261406695946" target="_blank" rel="noopener noreferrer"> <span> Read 16 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <p><a href="https://effect-way-course--jonas127.replit.app/"><code dir="auto">effect.ninja</code></a> – An interactive Effect course by Jonas Templestein.</p> <p> </p> <ul> <li><a href="https://github.com/PaulJPhilp/effect-json"><code dir="auto">effect-json</code></a>, a Type-safe, schema-driven JSON serialization for TypeScript and Effect, has been updated to v. 0.2.0. Project by Paul Philp.</li> </ul> <p> </p> <p><a href="https://github.com/bishalr0y/effect-weather"><code dir="auto">effect-weather</code></a> - A CLI weather application built with Effect that fetches and displays current weather information for any location using the OpenWeatherMap API. Project by Bishal Roy.</p> <p> </p> <ul> <li><strong>SvelteKit and Effect with Dillon Mulroy</strong> by <a href="https://www.youtube.com/@SvelteSociety">Svelte Society</a>. </li> </ul> <p> </p> <ul> <li>Thanks to <a href="https://x.com/jonas">Jonas Templestein</a> and <a href="https://x.com/skoshx">Rasmus Gustafsson</a> for the kind words on Effect and our community! ♥️ <div> <article> <div> <a href="https://twitter.com/jonas/status/1995989827662045675" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/606150238068310016/LFZvZ_bO_normal.png" alt="Jonas Templestein" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/jonas/status/1995989827662045675" target="_blank" rel="noopener noreferrer"> <div> <span title="Jonas Templestein">Jonas Templestein</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/jonas/status/1995989827662045675" target="_blank" rel="noopener noreferrer"> <span title="@jonas">@jonas</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=jonas" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/jonas/status/1995989827662045675" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>My god - effect logger + effect config with redacted values (i.e. secrets) is so good I can just do stuff like Effect.logDebug(config) without worrying about exposing API keys (they become &lt;redacted&gt; in the logs) Unlike when you cobble together typescript logging libraries with</span></p> <div> <a href="https://twitter.com/jonas/status/1995989827662045675" target="_blank" rel="noopener noreferrer" aria-label="10:53 PM · Dec 2, 2025"> <time datetime="2025-12-02T22:53:53.000Z"> 10:53 PM · Dec 2, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1995989827662045675" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 51 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>51</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1995989827662045675" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/jonas/status/1995989827662045675" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> <div> <article> <div> <a href="https://twitter.com/skoshx/status/1996010324005159229" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1683918502581657604/-RABqQ_S_normal.jpg" alt="Rasmus Gustafsson" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/skoshx/status/1996010324005159229" target="_blank" rel="noopener noreferrer"> <div> <span title="Rasmus Gustafsson">Rasmus Gustafsson</span> </div> </a> <div> <a href="https://twitter.com/skoshx/status/1996010324005159229" target="_blank" rel="noopener noreferrer"> <span title="@skoshx">@skoshx</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=skoshx" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/skoshx/status/1996010324005159229" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> discord is wild &gt; User: i think i found a bug in X &gt; </span><a href="https://twitter.com/tim_smart" target="_blank" rel="noopener noreferrer">@tim_smart</a><span> LITERALLY 2 min later: this PR fixes this [PR link] and this happens OFTEN. the dedication is palpable</span></p> <div> <a href="https://twitter.com/skoshx/status/1996010324005159229" target="_blank" rel="noopener noreferrer" aria-label="12:15 AM · Dec 3, 2025"> <time datetime="2025-12-03T00:15:19.000Z"> 12:15 AM · Dec 3, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1996010324005159229" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 27 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>27</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1996010324005159229" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/skoshx/status/1996010324005159229" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> </li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p>Maxwell Brown and Tim Smart were live on X and Twitch with <em>ChEffect</em>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1996350205814603897" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1996350205814603897" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1996350205814603897" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1996350205814603897" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Working on ChEffect - A Local-First Meal Planning App written with Effect </span><a href="https://x.com/i/broadcasts/1vOGwdAyknDJB" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/1996350205814603897" target="_blank" rel="noopener noreferrer" aria-label="10:45 PM · Dec 3, 2025"> <time datetime="2025-12-03T22:45:54.000Z"> 10:45 PM · Dec 3, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1996350205814603897" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 10 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>10</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1996350205814603897" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1996350205814603897" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> <li> <p><strong>ChEffect - Part 9: A Local-First App built w/ Effect &#x26; LiveStore</strong> and <strong>ChEffect - Part 10</strong> are now on our YouTube Channel.</p> </li> </ul> <p> </p> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1988255926743093386">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/2E525BrMXFVfXIOGk0QIM9">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/inside-openrouters-tech-stack-and-use-of-effect-6/id1781879869?i=1000736256230">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and the benefits of integrating Effect into their tech stack.</p> <p>We’ve published our sixth episode with Louis Vichy, co-founder of <a href="https://openrouter.ai/">OpenRouter</a>, who joined Johannes Schickling and Michael Arnaldi to talk about OpenRouter’s TypeScript stack, their internal tooling powered by Effect, and the engineering challenges of scaling an AI platform processing trillions of tokens weekly.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Interfere</strong>: <a href="https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply">Founding Product Engineer</a> and <a href="https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply">Founding AI Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/28/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/28/Effect Solutions and doctor-effect by Kit Langton. Office Hours and ChEffect 8 coding sessions. Fri, 28 Nov 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5660+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5813">Fix SqlPersistedQueue batch size</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5815">Fix:Arr.intersectionWith,differenceWith that Iterable</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5803">Ensure new system prompt is created if none exists when appending / prepending</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-cluster">Effect Cluster</h3><a aria-labelledby="effect-cluster" href="#effect-cluster"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5785">Immediately set entity keep alive in EntityResource</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5793">Allow advisory locks to be disabled</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5827">Add TestRunner &#x26; SingleRunner modules</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-experimental">Effect Experimental</h3><a aria-labelledby="effect-experimental" href="#effect-experimental"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5808">Persisted queue</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5816">Add dynamic batch size to PersistedQueue based on pending takers</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5820">Ensure redis PersistedQueue removes stale pending items on reset</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5829">Reset redis staging area on a schedule for PersistedQueue</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5797">Use original status code if headers have already been sent</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5818">Support HttpApiError unification</a> (Feature, Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5808">Persisted queue</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5813">Fix SqlPersistedQueue batch size</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5816">Add dynamic batch size to PersistedQueue based on pending takers</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5820">Ensure redis PersistedQueue removes stale pending items on reset</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5824">Improve ordering guarantees for SqlPersistedQueue</a> (Improvement)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5821">Add DurableQueue module</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5823">Propagate tracing info with DurableQueue</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5827">Add TestRunner &#x26; SingleRunner modules</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="general-chore">General Chore</h3><a aria-labelledby="general-chore" href="#general-chore"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5802">Setup trusted publishing to NPM</a> (Optimization)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-events">Community Events</h2><a aria-labelledby="community-events" href="#community-events"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>November has been full of community events, from our weekly Office Hours to local meetups in NYC, Berlin, Hamburg, and Sondrio.</p> <p>Next up is <a href="https://luma.com/rc84shks">Effect Vienna 🇦🇹</a> on December 18, organized by Sebastian Lorenz.</p> <p>To stay informed about future events, visit our <a href="https://luma.com/effect-community">Effect Community Events calendar</a> and subscribe for updates.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Effect mentioned by teej in the special Thanksgiving livestream by ThePrimeagen. Watch from 1:17:12. <div> <article> <div> <a href="https://twitter.com/ThePrimeagen/status/1993736016293974245" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1924503772094517249/DfKkH0ph_normal.jpg" alt="ThePrimeagen" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/ThePrimeagen/status/1993736016293974245" target="_blank" rel="noopener noreferrer"> <div> <span title="ThePrimeagen">ThePrimeagen</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/ThePrimeagen/status/1993736016293974245" target="_blank" rel="noopener noreferrer"> <span title="@ThePrimeagen">@ThePrimeagen</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=ThePrimeagen" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/ThePrimeagen/status/1993736016293974245" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>🚨🚨 SPECIAL THANKSGIVING EPISODE - The Standup 🚨🚨 🚨🚨 SPECIAL THANKSGIVING EPISODE - The Standup 🚨🚨🚨🚨 SPECIAL THANKSGIVING EPISODE - The Standup 🚨🚨🚨🚨 SPECIAL THANKSGIVING EPISODE - The Standup 🚨🚨🚨🚨 SPECIAL THANKSGIVING EPISODE - The Standu </span><a href="https://x.com/i/broadcasts/1zqKVdMLorVJB" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a><span></span></p> <div> <a href="https://twitter.com/ThePrimeagen/status/1993736016293974245" target="_blank" rel="noopener noreferrer" aria-label="5:38 PM · Nov 26, 2025"> <time datetime="2025-11-26T17:38:02.000Z"> 5:38 PM · Nov 26, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1993736016293974245" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 80 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>80</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1993736016293974245" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/ThePrimeagen/status/1993736016293974245" target="_blank" rel="noopener noreferrer"> <span> Read 3 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://www.effect.solutions">Effect Solutions</a>, a high-level guide for writing idiomatic Effect programs by Kit Langton. <div> <article> <div> <a href="https://twitter.com/kitlangton/status/1992956545345441823" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/1992956545345441823" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/1992956545345441823" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/1992956545345441823" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><a href="http://effect.solutions" target="_blank" rel="noopener noreferrer">effect.solutions</a><span> ← 👀 I'm working on some high-level, prescriptive Effect idioms. If anyone wants to try them out, let me know how they fail you! Copy the Agent Instructions into your favorite robot, and it should help you set up your repository. (Very WIP!) </span></p> <div> <div> <a href="https://twitter.com/kitlangton/status/1992956545345441823" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:72.81553398058253%"></div> <img src="https://pbs.twimg.com/media/G6hnEBnXUAAlsQF?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/kitlangton/status/1992956545345441823" target="_blank" rel="noopener noreferrer" aria-label="2:00 PM · Nov 24, 2025"> <time datetime="2025-11-24T14:00:42.000Z"> 2:00 PM · Nov 24, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1992956545345441823" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 392 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>392</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1992956545345441823" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/1992956545345441823" target="_blank" rel="noopener noreferrer"> <span> Read 44 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><code dir="auto">doctor-effect</code> by Kit! <div> <article> <div> <a href="https://twitter.com/kitlangton/status/1994078236716720315" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/1994078236716720315" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/1994078236716720315" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/1994078236716720315" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>presenting 𝚍𝚘𝚌𝚝𝚘𝚛-𝚎𝚏𝚏𝚎𝚌𝚝 </span></p> <div> <div> <div> <div style="width:unset;padding-bottom:56.25%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/1994077908323762176/img/xja7GW4bn272BJNN?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/1994077908323762176/vid/avc1/1920x1080/K0-7yQO82_hw6mDv.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/kitlangton/status/1994078236716720315" target="_blank" rel="noopener noreferrer" aria-label="4:17 PM · Nov 27, 2025"> <time datetime="2025-11-27T16:17:54.000Z"> 4:17 PM · Nov 27, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1994078236716720315" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 294 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>294</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1994078236716720315" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/1994078236716720315" target="_blank" rel="noopener noreferrer"> <span> Read 25 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://github.com/samuelho-dev/monorepo-library-generator">monorepo-library-generator</a> - an Effect-based monorepo library generator with workspace-agnostic architecture. Project by <a href="https://github.com/samuelho-dev">Samuel Ho</a></li> </ul> <p> </p> <ul> <li><a href="https://github.com/PaulJPhilp/effect-cli-tui">effect-cli-tui</a> by Paul Philp - an Effect-native CLI wrapper with interactive prompts and display utilities for building powerful terminal user interfaces, has been updated to the 2.0.0 version!</li> </ul> <p> </p> <ul> <li>Amin Khansari started a blog series about <a href="https://akhansari.tech/series/designing-with-types-typescript-effect-approach">domain modeling using Effect</a>.</li> </ul> <p> </p> <ul> <li>Dillon Mulroy livestreamed two new episodes of <a href="https://www.twitch.tv/videos/2626810235?filter=archives&#x26;sort=time"><strong>Building effect-cloudflare, Effect TS native bindings for CF 🚀</strong></a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><strong>Office Hours 9: Effect Solutions, Tooling, AI and LLM uses</strong> and <strong>ChEffect - Part 8: A Local-First App built w/ Effect &#x26; LiveStore</strong> are now on our YouTube Channel.</li> </ul> <p> </p> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1988255926743093386">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/2E525BrMXFVfXIOGk0QIM9">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/inside-openrouters-tech-stack-and-use-of-effect-6/id1781879869?i=1000736256230">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and the benefits of integrating Effect into their tech stack.</p> <p>We’ve published our sixth episode with Louis Vichy, co-founder of <a href="https://openrouter.ai/">OpenRouter</a>, who joined Johannes Schickling and Michael Arnaldi to talk about OpenRouter’s TypeScript stack, their internal tooling powered by Effect, and the engineering challenges of scaling an AI platform processing trillions of tokens weekly.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>A French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>A stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/21/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/21/12k ⭐️ on GitHub! Maybe I Was Wrong About Effect by Ben Davis. Effect NYC Meetup hosted by Warp. Effect Office Hours 9. Fri, 21 Nov 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5620+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5752">Fix Types.DeepMutable mapping over functions</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5739">Add PartitionedSemaphore module</a> (Feature, next-minor)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5772">Backport Effect.gen optimization</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5778">Add EntityResource module</a> (Feaure)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5710">Add logs to first propagated span</a> (Bug Fix, next-minor)</li> </ul> <div tabindex="-1"><h3 id="effect-cluster">Effect Cluster</h3><a aria-labelledby="effect-cluster" href="#effect-cluster"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5765">Add entityRegistrationTimeout to ShardingConfig</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5771">Add in-memory WorkflowEngine layer</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5775">Ensure ClusterCron’s can be resumed if re-added</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5778">Add EntityResource module</a> (Feaure)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5781">Provide seperate close scope to EntityResource via context</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5783">Add EntityResource.makeK8sPod</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-experimental">Effect Experimental</h3><a aria-labelledby="effect-experimental" href="#effect-experimental"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5761">Fix partial window calculation for fixed window rate limiter</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5763">Fix RateLimiter fixed window alogrithm</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5773">Add RateLimiter helpers makeWithRateLimiter and makeSleep</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-opentelemetry">Effect Opentelemetry</h3><a aria-labelledby="effect-opentelemetry" href="#effect-opentelemetry"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5710">Add logs to first propagated span</a> (Bug Fix, next-minor)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5759">Fix: scalar configuration and types</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5783">Add EntityResource.makeK8sPod</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-rpc">Effect RPC</h3><a aria-labelledby="effect-rpc" href="#effect-rpc"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5769">Make RpcClient socket retry schedule configurable</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5771">Add in-memory WorkflowEngine layer</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5758">Fix query result streaming in @effect/sql-pg</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5771">Add in-memory WorkflowEngine layer</a> (Feature)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>This week, we celebrate another community milestone: Effect crossed 12k stars on GitHub! 🌟 <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1991882962338762870" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1991882962338762870" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1991882962338762870" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1991882962338762870" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>12k 🌟 </span></p> <div> <div> <a href="https://twitter.com/EffectTS_/status/1991882962338762870" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:63%"></div> <img src="https://pbs.twimg.com/media/G6SW3E8WwAAvJ0k?format=jpg&name=small" alt="Github star history chart" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/EffectTS_/status/1991882962338762870" target="_blank" rel="noopener noreferrer" aria-label="2:54 PM · Nov 21, 2025"> <time datetime="2025-11-21T14:54:40.000Z"> 2:54 PM · Nov 21, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1991882962338762870" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 80 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>80</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1991882962338762870" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1991882962338762870" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>We had a great time at our NYC meetup last Wednesday! Huge thanks to <a href="https://www.joinwarp.com/">Warp</a> for welcoming us into their space, as well as Kit Langton and Harry Solovay for sharing insights on Effect and Effect AI! Appreciate everyone who came out to connect and learn. <div> <article> <div> <a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1971992867485749248/hUIV2TUT_normal.jpg" alt="Warp" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer"> <div> <span title="Warp">Warp</span> </div> <div><svg viewBox="0 0 22 22" aria-label="Verified account" role="img"> <g> <linearGradient gradientUnits="userSpaceOnUse" id="0-a" x1="4.411" x2="18.083" y1="2.495" y2="21.508"> <stop offset="0" stop-color="#f4e72a"></stop> <stop offset=".539" stop-color="#cd8105"></stop> <stop offset=".68" stop-color="#cb7b00"></stop> <stop offset="1" stop-color="#f4ec26"></stop> <stop offset="1" stop-color="#f4e72a"></stop> </linearGradient> <linearGradient gradientUnits="userSpaceOnUse" id="0-b" 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noreferrer">@EffectfulTech</a><span>, </span><a href="https://twitter.com/MichaelArnaldi" target="_blank" rel="noopener noreferrer">@MichaelArnaldi</a><span>, </span><a href="https://twitter.com/MirelaPriftix" target="_blank" rel="noopener noreferrer">@MirelaPriftix</a><span> and </span><a href="https://twitter.com/kitlangton" target="_blank" rel="noopener noreferrer">@kitlangton</a><span> for bringing an awesome group</span></p> <div> <div> <a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.25%"></div> <img src="https://pbs.twimg.com/media/G6NH_5ZXsAADXXk?format=jpg&name=small" alt="Image" draggable="true"> </a><a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.25%"></div> <img src="https://pbs.twimg.com/media/G6NH_5dWoAASvc0?format=jpg&name=small" alt="Image" draggable="true"> </a><a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.25%"></div> <img src="https://pbs.twimg.com/media/G6NH_5sXkAAC-ei?format=jpg&name=small" alt="Image" draggable="true"> </a><a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.25%"></div> <img src="https://pbs.twimg.com/media/G6NH_5eWwAEFGz2?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer" aria-label="3:13 PM · Nov 20, 2025"> <time datetime="2025-11-20T15:13:39.000Z"> 3:13 PM · Nov 20, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1991525351256912344" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 43 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>43</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1991525351256912344" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/joinwarp/status/1991525351256912344" target="_blank" rel="noopener noreferrer"> <span> Read 5 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><strong>Maybe I Was Wrong About Effect… (is it really worth it?)</strong> by Ben Davis. Spoiler alert: it is! </li> </ul> <p> </p> <ul> <li><a href="https://github.com/PaulJPhilp/effect-env">effect-env</a> by Paul Philp – a TypeScript library for managing environment variables with type safety, schema validation, and security features, built with Effect, has been updated to the 0.4.1 version!</li> </ul> <p> </p> <ul> <li><a href="https://marketplace.visualstudio.com/items?itemName=DearHumanDev.effect-decorate">effect-decorate</a> - a decorative-only VSCode extension that helps reduce Effect code’s verbosity. Project by Enrico Polansky.</li> </ul> <p> </p> <ul> <li><a href="https://typingterminal.com">Typing Terminal</a> by <a href="https://github.com/devinjameson">Devin Jameson</a> - a real-time multiplayer typing game built with Effect and <a href="https://foldkit.dev/">Foldkit</a>.</li> </ul> <p> </p> <ul> <li><a href="https://www.npmjs.com/package/effect-prisma-generator">Effect Prisma Generator</a> - A Prisma generator that creates a fully-typed, Effect-based service wrapper for your Prisma Client. Project by <a href="https://github.com/m9tdev">Mathieu Post</a>.</li> </ul> <p> </p> <ul> <li>Dillon Mulroy livestreamed three new episodes of <a href="https://www.twitch.tv/videos/2622485981?filter=archives&#x26;sort=time"><strong>Building effect-cloudflare, Effect TS native bindings for CF 🚀</strong></a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>The 9th episode of <strong>Effect Office Hours</strong> went live on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the <a href="https://x.com/EffectTS_/status/1991159651728232728">livestream on X(Twitter)</a></li> </ul> <p> </p> <ul> <li><strong>Office Hours 8: Effect managed runtime, error handling, fiber management, API design patterns</strong> is now on our YouTube Channel.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1988255926743093386">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/2E525BrMXFVfXIOGk0QIM9">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/inside-openrouters-tech-stack-and-use-of-effect-6/id1781879869?i=1000736256230">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and the benefits of integrating Effect into their tech stack.</p> <p>We’ve published our sixth episode with Louis Vichy, co-founder of <a href="https://openrouter.ai/">OpenRouter</a>, who joined Johannes Schickling and Michael Arnaldi to talk about OpenRouter’s TypeScript stack, their internal tooling powered by Effect, and the engineering challenges of scaling an AI platform processing trillions of tokens weekly.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>A French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>A stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>Tranched</strong>: <a href="https://tranched.fi/careers/fullstack-developer-web3">Full-stack Engineer Web3</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> <li> <p><strong>Goblins</strong> is looking for a Product Founding Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231">our Discord</a>.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/14/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/14/OpenRouter's co-founder, Louis Vichy, on the Cause & Effect podcast. Building AI applications with Effect & Netlify. Effect Office Hours 8. Fri, 14 Nov 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5570+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5711">@effect/ai: link to website docs</a> (Documentation Update)</li> </ul> <div tabindex="-1"><h3 id="effect-cluster">Effect Cluster</h3><a aria-labelledby="effect-cluster" href="#effect-cluster"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5716">Optimize Sharding shard release</a> (Optimization)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5719">Re-use resume parent messages for child workflows</a> (Optimization)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5726">Support and test against vitess for SqlRunnerStorage</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-experimental">Effect Experimental</h3><a aria-labelledby="effect-experimental" href="#effect-experimental"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5731">Add persisted RateLimiter to @effect/experimental</a> (Feature)</li> </ul> <div tabindex="-1"><h3 id="effect-opentelemetry">Effect Opentelemetry</h3><a aria-labelledby="effect-opentelemetry" href="#effect-opentelemetry"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5734">Convert bigints to string for otel</a> (Refactor )</li> <li><a href="https://github.com/Effect-TS/effect/pull/5735">Handle undefined pg client</a> (Improvement)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5728">Fix UrlParams.setAll overwrite semantics</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5737">Ensure HttpApiScalar source is tree-shakable</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5740">Make http client tests as flaky</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5741">Increase HttpClient test timeouts</a> (Improvement)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5717">Improve pg client error handling</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5725">PgClient: fix regression on undefined config values</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5735">Handle undefined pg client</a> (Improvement)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5731">Add persisted RateLimiter to @effect/experimental</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5742">Don’t try resume a child workflow if it has a defect</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5744">Remove auto-resumption of child workflows</a> (Bug Fix)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast--episode-6">Cause &#x26; Effect Podcast | Episode #6</h2><a aria-labelledby="cause--effect-podcast--episode-6" href="#cause--effect-podcast--episode-6"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Inside OpenRouter’s Tech Stack and Use of Effect</p> <p>Louis Vichy, co-founder of <a href="https://openrouter.ai/">OpenRouter</a>, joins Johannes Schickling and Michael Arnaldi to talk about OpenRouter’s TypeScript stack, their internal tooling powered by Effect, and the engineering challenges of scaling an AI platform processing trillions of tokens weekly.</p> <p>Cause &#x26; Effect features stories from software engineers and companies that use Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and benefits of integrating Effect into their tech stack.</p> <p>The Cause &#x26; Effect podcast is hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1988255926743093386">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/2E525BrMXFVfXIOGk0QIM9">Spotify</a> and <a href="https://podcasts.apple.com/it/podcast/inside-openrouters-tech-stack-and-use-of-effect-6/id1781879869?i=1000736256230">Apple Podcast</a>.</p> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p>Maxwell Brown joined Sean C Davis to talk about building AI web applications using Effect and Netlify.</p> </li> </ul> <p> </p> <ul> <li>Pritam Kadam introduced <a href="https://kpritam.github.io/cliq">cliq</a>, a CLI-based AI coding agent that shows how coding agents actually work, from scratch, using Effect for typed effects &#x26; composability.</li> </ul> <div> <article> <div> <a href="https://twitter.com/_pritam_kadam_/status/1988282125582520787" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/950371270201356288/iMz4EOFD_normal.jpg" alt="Pritam Kadam" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/_pritam_kadam_/status/1988282125582520787" target="_blank" rel="noopener noreferrer"> <div> <span title="Pritam Kadam">Pritam Kadam</span> </div> </a> <div> <a href="https://twitter.com/_pritam_kadam_/status/1988282125582520787" target="_blank" rel="noopener noreferrer"> <span title="@_pritam_kadam_">@_pritam_kadam_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=_pritam_kadam_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/_pritam_kadam_/status/1988282125582520787" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>1/3 🚀 Introducing cliq — a CLI-based AI coding agent that shows how coding agents actually work, from scratch. It’s not about using a coding agent — it’s about learning by building one. Big thanks to </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> , </span><a href="https://twitter.com/vercel" target="_blank" rel="noopener noreferrer">@vercel</a><span> &amp; </span><a href="https://twitter.com/opencode" target="_blank" rel="noopener noreferrer">@opencode</a><span> for the inspiration ❤️ 👇 🧵 </span></p> <div> <div> <div> <div style="width:unset;padding-bottom:67.75320139697322%"></div> <video poster="https://pbs.twimg.com/tweet_video_thumb/G5fJdt7WIAEvxI1?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/tweet_video/G5fJdt7WIAEvxI1.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/_pritam_kadam_/status/1988282125582520787" target="_blank" rel="noopener noreferrer" aria-label="4:26 PM · Nov 11, 2025"> <time datetime="2025-11-11T16:26:13.000Z"> 4:26 PM · Nov 11, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1988282125582520787" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 48 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>48</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1988282125582520787" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/_pritam_kadam_/status/1988282125582520787" target="_blank" rel="noopener noreferrer"> <span> Read 4 replies </span> </a> </div> </article> </div> <p> </p> <ul> <li><a href="https://github.com/marimo-team/marimo">marimo</a>, a reactive Python notebook, went all in on Effect for its upcoming VS Code extension.</li> </ul> <p> </p> <ul> <li> <p><strong>How to Do Real-Time UI Updates in React (WS vs SSE)</strong> by <a href="https://www.youtube.com/@lucas-patron">Lucas Patron</a>.</p> </li> </ul> <p> </p> <ul> <li>Dillon Mulroy livestreamed four new episodes of <a href="https://www.twitch.tv/videos/2614670954?filter=archives&#x26;sort=time"><strong>Building a family recipe app with LiveStore, Effect, and CF Workers</strong></a>.</li> </ul> <p> </p> <ul> <li>Another coding session by teej dv as he works on <a href="https://x.com/teej_dv/status/1988271005299605832?s=20">rebuilding terminal.shop using Effect</a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>The eighth episode of <strong>Effect Office Hours</strong> went live on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the livestream on X(Twitter) below. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1988623057288892895" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1988623057288892895" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1988623057288892895" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1988623057288892895" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Office Hours — </span><a href="https://riverside.fm/studio/kit-langtons-studio-AAlRA" target="_blank" rel="noopener noreferrer">riverside.fm/studio/kit-lan…</a><span> </span><a href="https://x.com/i/broadcasts/1lDxLBRnrBRGm" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/1988623057288892895" target="_blank" rel="noopener noreferrer" aria-label="3:00 PM · Nov 12, 2025"> <time datetime="2025-11-12T15:00:58.000Z"> 3:00 PM · Nov 12, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1988623057288892895" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 14 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>14</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1988623057288892895" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1988623057288892895" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><strong>🔥 Office Hours 7: Scheduling, Context, Layers, Dependency Management, Tooling, Workflows…</strong> is now on our YouTube Channel.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>A French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>A stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/07/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/11/07/5 million npm downloads per week milestone! 🚀 Effect 3.19 release. Vienna Meetup Dec 18. Effect Office Hours 7 & ChEffect coding session. Fri, 07 Nov 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers build complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/319">Effect 3.19</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5510+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p><a href="https://effect.website/blog/releases/effect/319/">Effect 3.19</a> has been released!</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1985653309353632122" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1985653309353632122" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1985653309353632122" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1985653309353632122" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect 3.19 has been released! 🚀 → effect/cluster improvements → HashRing module → Effect.fn.Return More in the blog post by </span><a href="https://twitter.com/tim_smart" target="_blank" rel="noopener noreferrer">@tim_smart</a><span>: </span><a href="https://effect.website/blog/releases/effect/319/" target="_blank" rel="noopener noreferrer">effect.website/blog/releases/…</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1985653309353632122" target="_blank" rel="noopener noreferrer" aria-label="10:20 AM · Nov 4, 2025"> <time datetime="2025-11-04T10:20:15.000Z"> 10:20 AM · Nov 4, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1985653309353632122" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 93 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>93</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1985653309353632122" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1985653309353632122" target="_blank" rel="noopener noreferrer"> <span> Read 5 replies </span> </a> </div> </article> </div> <p>More features coming to Schema V4: JSON Schemas sent to AI platforms will be automatically enriched with generated descriptions.</p> <div> <article> <div> <a href="https://twitter.com/GiulioCanti/status/1984201600139943972" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/507058995845017600/c0OWECjS_normal.png" alt="Giulio Canti" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/GiulioCanti/status/1984201600139943972" target="_blank" rel="noopener noreferrer"> <div> <span title="Giulio Canti">Giulio Canti</span> </div> </a> <div> <a href="https://twitter.com/GiulioCanti/status/1984201600139943972" target="_blank" rel="noopener noreferrer"> <span title="@GiulioCanti">@GiulioCanti</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=GiulioCanti" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/GiulioCanti/status/1984201600139943972" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Schema v4 🤝 AI platforms The JSON Schemas sent to AI platforms are simplified because most support only a limited set of features, we can automatically generate descriptions to fill in the gaps </span></p> <div> <div> <a href="https://twitter.com/GiulioCanti/status/1984201600139943972" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:181.50208623087622%"></div> <img src="https://pbs.twimg.com/media/G4lMU01WgAAriIp?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/GiulioCanti/status/1984201600139943972" target="_blank" rel="noopener noreferrer" aria-label="10:11 AM · Oct 31, 2025"> <time datetime="2025-10-31T10:11:40.000Z"> 10:11 AM · Oct 31, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1984201600139943972" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 69 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>69</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1984201600139943972" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/GiulioCanti/status/1984201600139943972" target="_blank" rel="noopener noreferrer"> <span> Read 7 replies </span> </a> </div> </article> </div> <p>Here are all the technical changes from the past week (note that changes included in the 3.19 release will not be listed).</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5679">Array.window signature has been improved</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5695">Tie Entity lifetime to layer scope</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5703">Preserve Layer.mergeAll context order</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5712">Use standard formatting function in Config error messages</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5685">Fix Response.Part, AllParts, StreamPart not inferring Schema properly if toolkit is WithHandler</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-cli">Effect CLI</h3><a aria-labelledby="effect-cli" href="#effect-cli"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5677">Fix log level cli arg infinite loop</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-cluster">Effect Cluster</h3><a aria-labelledby="effect-cluster" href="#effect-cluster"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5684">Retry interrupted workflow activities</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5689">Add Sharding shutdown log</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5691">Prevent interrupt suspends from propagating</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5693">Change workflow re-registration defect to a warning</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5695">Tie Entity lifetime to layer scope</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5698">Add premptiveShutdown option to ShardingConfig</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5701">Add interruption support to sql-pg</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5703">Preserve Layer.mergeAll context order</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5705">Add timeout to pg query cancellation</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-rpc">Effect RPC</h3><a aria-labelledby="effect-rpc" href="#effect-rpc"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5664">Expose disableFatalDefects option in RPC server public API</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5682">Fix RpcServer.toLayer type</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5686">Allow any type to be used as sql parameters</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5690">Fix handling of multi-statement queries</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5701">Add interruption support to sql-pg</a> (Feature)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5705">Add timeout to pg query cancellation</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5684">Retry interrupted workflow activities</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5695">Tie Entity lifetime to layer scope</a> (Improvement)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Yet another community milestone: Effect has surpassed the 5 million npm downloads per week!🚀 <div> <article> <div> <a href="https://twitter.com/MichaelArnaldi/status/1985358703730553262" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1232338149340319751/Ln9nNWyk_normal.jpg" alt="Michael Arnaldi" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/MichaelArnaldi/status/1985358703730553262" target="_blank" rel="noopener noreferrer"> <div> <span title="Michael Arnaldi">Michael Arnaldi</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 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This Tweet has 80 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>80</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1985358703730553262" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/MichaelArnaldi/status/1985358703730553262" target="_blank" rel="noopener noreferrer"> <span> Read 4 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Effect is back in Vienna for an <a href="https://luma.com/rc84shks">Effect Meetup</a> on Thursday, December 18th. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1986418628313370997" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1986418628313370997" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1986418628313370997" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1986418628313370997" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Back in Vienna! 🇦🇹 Come meet the community on Dec 18 at </span><a href="https://twitter.com/Lean_Coders" target="_blank" rel="noopener noreferrer">@Lean_Coders</a><span>' office. → Reserve your spot: </span><a href="https://luma.com/rc84shks" target="_blank" rel="noopener noreferrer">luma.com/rc84shks</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1986418628313370997" target="_blank" rel="noopener noreferrer" aria-label="1:01 PM · Nov 6, 2025"> <time datetime="2025-11-06T13:01:21.000Z"> 1:01 PM · Nov 6, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1986418628313370997" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 12 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>12</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1986418628313370997" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1986418628313370997" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><a href="https://x.com/teej_dv/status/1986093430561542392">teej dv</a> continues the work on rebuilding Terminal using Effect.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/alchemy-run/alchemy-effect"><code dir="auto">alchemy-effect</code></a>, the Infrastructure-as-Effects (IaE) framework that unifies business logic and infrastructure config into a single, type-safe program, is open on GitHub.</li> </ul> <p> </p> <ul> <li>LLMs ❤️ Effect! <div> <article> <div> <a href="https://twitter.com/mattpocockuk/status/1985661993999552693" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1666460461884211204/SmBm505D_normal.jpg" alt="Matt Pocock" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/mattpocockuk/status/1985661993999552693" target="_blank" rel="noopener noreferrer"> <div> <span title="Matt Pocock">Matt Pocock</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/mattpocockuk/status/1985661993999552693" target="_blank" rel="noopener noreferrer"> <span title="@mattpocockuk">@mattpocockuk</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=mattpocockuk" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/mattpocockuk/status/1985661993999552693" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Yes, LLM's are good at Effect: Here's Claude Code offering to refactor my existing git logic into a service.</span></p> <div> <div> <a href="https://twitter.com/mattpocockuk/status/1985661993999552693" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:70.05181347150258%"></div> <img src="https://pbs.twimg.com/media/G458_SEWYAAZmYg?format=png&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/mattpocockuk/status/1985661993999552693" target="_blank" rel="noopener noreferrer" aria-label="10:54 AM · Nov 4, 2025"> <time datetime="2025-11-04T10:54:45.000Z"> 10:54 AM · Nov 4, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1985661993999552693" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 288 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>288</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1985661993999552693" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/mattpocockuk/status/1985661993999552693" target="_blank" rel="noopener noreferrer"> <span> Read 22 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Effect mentioned at the <a href="https://www.youtube.com/watch?v=xxfSV5fKVD4">UHC special 20th Builder Talk</a>.</li> </ul> <p> </p> <ul> <li>Dillon Mulroy livestreamed three new episodes of <a href="https://www.twitch.tv/videos/2605152345?filter=archives&#x26;sort=time"><strong>Building a family recipe app with LiveStore, Effect, and CF Workers</strong></a>.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>The seventh episode of <strong>Effect Office Hours</strong> went live on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the livestream on X(Twitter) below. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1986086153163047120" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1986086153163047120" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1986086153163047120" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1986086153163047120" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Office Hours </span><a href="https://x.com/i/broadcasts/1ynKOMNYeeVJR" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/1986086153163047120" target="_blank" rel="noopener noreferrer" aria-label="3:00 PM · Nov 5, 2025"> <time datetime="2025-11-05T15:00:13.000Z"> 3:00 PM · Nov 5, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1986086153163047120" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 16 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>16</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1986086153163047120" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1986086153163047120" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Maxwell Brown and Tim Smart were live on X and Twitch with <em>ChEffect</em>. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1986190092554412288" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1986190092554412288" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1986190092554412288" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1986190092554412288" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Working on ChEffect - A Local-First Meal Planning App written with Effect </span><a href="https://x.com/i/broadcasts/1vOxwdgqmEbKB" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/1986190092554412288" target="_blank" rel="noopener noreferrer" aria-label="9:53 PM · Nov 5, 2025"> <time datetime="2025-11-05T21:53:14.000Z"> 9:53 PM · Nov 5, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1986190092554412288" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 19 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>19</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1986190092554412288" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1986190092554412288" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><strong>ChEffect - Part 7: A Local-First App built w/ Effect &#x26; LiveStore</strong> and <strong>🔥 Office Hours 6: Effect Context &#x26; Layers + Confect Library (Effect + Convex integration)</strong> are now on our YouTube Channel.</li> </ul> <p> </p> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1967543931031126523">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/5vhRg2zUt7UxP7ABof8XQ0">Spotify</a> and <a href="https://podcasts.apple.com/us/podcast/event-driven-systems-in-fintech-how-spiko-leverages/id1781879869?i=1000726884416">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and the benefits of integrating Effect into their tech stack.</p> <p>We’ve published our fifth episode with Samuel Briole, CTO of <a href="https://www.spiko.io/">Spiko</a>, a Paris-based FinTech startup building infrastructure for issuing regulated financial products on public blockchains, specifically risk-free products.</p> <p>Spiko utilizes Effect extensively from day one, for both backend and frontend development, particularly for managing asynchronous operations, API integrations, and smart contracts.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>A French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>A stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. 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Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/releases/effect/319/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/releases/effect/319/New Effect release featuring @effect/cluster improvements, HashRing module, Effect.fn improvements, and more! Tue, 04 Nov 2025 00:00:00 GMT<p>Effect 3.19 has been released! This release includes a number of new features and improvements. Here’s a summary of what’s new:</p> <div tabindex="-1"><h2 id="effectcluster-improvements">@effect/cluster improvements</h2><a aria-labelledby="effectcluster-improvements" href="#effectcluster-improvements"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <code dir="auto">@effect/cluster</code> package has been significantly improved. The cluster system no longer requires a Shard Manager, and instead relies on the <code dir="auto">RunnerStorage</code> service to track runner state.</p> <p>To migrate, remove any Shard Manager deployments and use the updated layers in <code dir="auto">@effect/platform-node</code> or <code dir="auto">@effect/platform-bun</code>.</p> <div tabindex="-1"><h3 id="breaking-changes">Breaking Changes</h3><a aria-labelledby="breaking-changes" href="#breaking-changes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><code dir="auto">ShardManager</code> module has been removed</li> <li><code dir="auto">EntityNotManagedByRunner</code> error has been removed</li> <li>Shard locks now use database advisory locks, which requires stable sessions for database connections. This means load balancers or proxies that rotate connections may cause issues.</li> <li><code dir="auto">@effect/platform-node/NodeClusterSocketRunner</code> is now <code dir="auto">@effect/cluster/NodeClusterSocket</code></li> <li><code dir="auto">@effect/platform-node/NodeClusterHttpRunner</code> is now <code dir="auto">@effect/cluster/NodeClusterHttp</code></li> <li><code dir="auto">@effect/platform-bun/BunClusterSocketRunner</code> is now <code dir="auto">@effect/cluster/BunClusterSocket</code></li> <li><code dir="auto">@effect/platform-bun/BunClusterHttpRunner</code> is now <code dir="auto">@effect/cluster/BunClusterHttp</code></li> </ul> <div tabindex="-1"><h3 id="new-features">New Features</h3><a aria-labelledby="new-features" href="#new-features"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><code dir="auto">RunnerHealth.layerK8s</code> has been added, which uses the Kubernetes API to track runner health and liveness. To use it, you will need a service account with permissions to read pod information.</li> </ul> <div tabindex="-1"><h2 id="hashring-module">HashRing module</h2><a aria-labelledby="hashring-module" href="#hashring-module"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>An experimental <code dir="auto">HashRing</code> module has been added to the Effect core library.</p> <p>This module can be used to consistently distribute keys across a set of nodes.</p> <div><figure><figcaption></figcaption><pre data-language="typescript"><code><div><div><div aria-hidden="true">1</div></div><div><span style="--0:#BF3441;--1:#F97583">import</span><span style="--0:#24292E;--1:#E1E4E8"> { Data, HashRing, PrimaryKey } </span><span style="--0:#BF3441;--1:#F97583">from</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#032F62;--1:#9ECBFF">"effect"</span></div></div><div><div><div aria-hidden="true">2</div></div><div> </div></div><div><div><div aria-hidden="true">3</div></div><div><span style="--0:#616972;--1:#99A0A6">// The "nodes" in the hash ring need to implement PrimaryKey</span></div></div><div><div><div aria-hidden="true">4</div></div><div><span style="--0:#BF3441;--1:#F97583">class</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#6F42C1;--1:#B392F0">Host</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#BF3441;--1:#F97583">extends</span><span style="--0:#24292E;--1:#E1E4E8"> Data.</span><span style="--0:#6F42C1;--1:#B392F0">Class</span><span style="--0:#24292E;--1:#E1E4E8">&#x3C;{</span></div></div><div><div><div aria-hidden="true">5</div></div><div><span> </span><span style="--0:#AE4B07;--1:#FFAB70">ip</span><span style="--0:#BF3441;--1:#F97583">:</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#005CC5;--1:#79B8FF">string</span></div></div><div><div><div aria-hidden="true">6</div></div><div><span style="--0:#24292E;--1:#E1E4E8">}> {</span></div></div><div><div><div aria-hidden="true">7</div></div><div><span><span style="--0:#24292E;--1:#E1E4E8"> </span></span><span style="--0:#24292E;--1:#E1E4E8">[PrimaryKey.symbol]() {</span></div></div><div><div><div aria-hidden="true">8</div></div><div><span> </span><span style="--0:#BF3441;--1:#F97583">return</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#005CC5;--1:#79B8FF">this</span><span style="--0:#24292E;--1:#E1E4E8">.ip</span></div></div><div><div><div aria-hidden="true">9</div></div><div><span><span style="--0:#24292E;--1:#E1E4E8"> </span></span><span style="--0:#24292E;--1:#E1E4E8">}</span></div></div><div><div><div aria-hidden="true">10</div></div><div><span style="--0:#24292E;--1:#E1E4E8">}</span></div></div><div><div><div aria-hidden="true">11</div></div><div> </div></div><div><div><div aria-hidden="true">12</div></div><div><span style="--0:#616972;--1:#99A0A6">// Make an empty hash ring</span></div></div><div><div><div aria-hidden="true">13</div></div><div><span style="--0:#BF3441;--1:#F97583">const</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#005CC5;--1:#79B8FF">ring</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#BF3441;--1:#F97583">=</span><span style="--0:#24292E;--1:#E1E4E8"> HashRing.</span><span style="--0:#6F42C1;--1:#B392F0">make</span><span style="--0:#24292E;--1:#E1E4E8">&#x3C;</span><span style="--0:#6F42C1;--1:#B392F0">Host</span><span style="--0:#24292E;--1:#E1E4E8">>()</span></div></div><div><div><div aria-hidden="true">14</div></div><div> </div></div><div><div><div aria-hidden="true">15</div></div><div><span style="--0:#616972;--1:#99A0A6">// Add some nodes to the ring</span></div></div><div><div><div aria-hidden="true">16</div></div><div><span style="--0:#24292E;--1:#E1E4E8">HashRing.</span><span style="--0:#6F42C1;--1:#B392F0">add</span><span style="--0:#24292E;--1:#E1E4E8">(ring, </span><span style="--0:#BF3441;--1:#F97583">new</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#6F42C1;--1:#B392F0">Host</span><span style="--0:#24292E;--1:#E1E4E8">({ ip: </span><span style="--0:#032F62;--1:#9ECBFF">"192.168.1.1"</span><span style="--0:#24292E;--1:#E1E4E8"> }))</span></div></div><div><div><div aria-hidden="true">17</div></div><div><span style="--0:#24292E;--1:#E1E4E8">HashRing.</span><span style="--0:#6F42C1;--1:#B392F0">add</span><span style="--0:#24292E;--1:#E1E4E8">(ring, </span><span style="--0:#BF3441;--1:#F97583">new</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#6F42C1;--1:#B392F0">Host</span><span style="--0:#24292E;--1:#E1E4E8">({ ip: </span><span style="--0:#032F62;--1:#9ECBFF">"192.168.1.2"</span><span style="--0:#24292E;--1:#E1E4E8"> }))</span></div></div><div><div><div aria-hidden="true">18</div></div><div><span style="--0:#24292E;--1:#E1E4E8">HashRing.</span><span style="--0:#6F42C1;--1:#B392F0">add</span><span style="--0:#24292E;--1:#E1E4E8">(ring, </span><span style="--0:#BF3441;--1:#F97583">new</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#6F42C1;--1:#B392F0">Host</span><span style="--0:#24292E;--1:#E1E4E8">({ ip: </span><span style="--0:#032F62;--1:#9ECBFF">"192.168.1.3"</span><span style="--0:#24292E;--1:#E1E4E8"> }))</span></div></div><div><div><div aria-hidden="true">19</div></div><div> </div></div><div><div><div aria-hidden="true">20</div></div><div><span style="--0:#616972;--1:#99A0A6">// Get the node responsible for a given key</span></div></div><div><div><div aria-hidden="true">21</div></div><div><span style="--0:#BF3441;--1:#F97583">const</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#005CC5;--1:#79B8FF">host</span><span style="--0:#24292E;--1:#E1E4E8"> </span><span style="--0:#BF3441;--1:#F97583">=</span><span style="--0:#24292E;--1:#E1E4E8"> HashRing.</span><span style="--0:#6F42C1;--1:#B392F0">get</span><span style="--0:#24292E;--1:#E1E4E8">(ring, </span><span style="--0:#032F62;--1:#9ECBFF">"my-key"</span><span style="--0:#24292E;--1:#E1E4E8">)</span><span style="--0:#BF3441;--1:#F97583">!</span></div></div></code></pre><div><button title="Copy to clipboard" data-copied="Copied!" data-code=""> { [PrimaryKey.symbol]() { return this.ip }}// Make an empty hash ringconst ring = HashRing.make</button></div></figure></div>ReleasesEffecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/10/31/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/10/31/Livestream with Teej DV & Kit Langton. Effect, the Good Parts, by Dillon Mulroy & Swyx. Effect + Next.js & Panel Discussion from Effect Milan Meetup. Effect Office Hours 6. Fri, 31 Oct 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers create complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/318">Effect 3.18</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5510+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p><a href="https://github.com/Effect-TS/language-service">Effect LSP 0.49</a> has been released and includes the Layer Outline Graph!</p> <div> <article> <div> <a href="https://twitter.com/MattiaManzati/status/1983505287618199576" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1760648358677340161/qzQo0HtX_normal.jpg" alt="Mattia Manzati" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/MattiaManzati/status/1983505287618199576" target="_blank" rel="noopener noreferrer"> <div> <span title="Mattia Manzati">Mattia Manzati</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/MattiaManzati/status/1983505287618199576" target="_blank" rel="noopener noreferrer"> <span title="@MattiaManzati">@MattiaManzati</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=MattiaManzati" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/MattiaManzati/status/1983505287618199576" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> LSP version has new kind of layer graph... The Layer Outline Graph! Rather than HOW you built the layer, it focuses on the building blocks, and their RELATIONSHIPS. You can then decide how to manually arrange your layer composition!</span></p> <div> <div> <a href="https://twitter.com/MattiaManzati/status/1983505287618199576" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:49.78577549271636%"></div> <img src="https://pbs.twimg.com/media/G4bTdBbXwAE21Zz?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/MattiaManzati/status/1983505287618199576" target="_blank" rel="noopener noreferrer" aria-label="12:04 PM · Oct 29, 2025"> <time datetime="2025-10-29T12:04:46.000Z"> 12:04 PM · Oct 29, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1983505287618199576" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 32 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>32</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1983505287618199576" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/MattiaManzati/status/1983505287618199576" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5653">Remove some leftover gen adapters</a> (Refactor)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5669">Fix Graph.neighbors for undirected graphs</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5671">Add jsonSchema2020-12 target and fix tuple output</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5660">Backport graph module changes</a> (Feature, next-minor)</li> </ul> <div tabindex="-1"><h3 id="effect-cli">Effect CLI</h3><a aria-labelledby="effect-cli" href="#effect-cli"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5653">Remove some leftover gen adapters</a> (Refactor)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5668">README.md for HttpApiEndpoint: clarify header schema usage and add note on header normalization</a> (Documentation Update)</li> </ul> <div tabindex="-1"><h3 id="effect-sql">Effect SQL</h3><a aria-labelledby="effect-sql" href="#effect-sql"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5632">Support config.url in MysqlMigrator</a> (Improvement)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>Last week’s <a href="https://x.com/teej_dv">teej dv</a>’s stream with <a href="https://x.com/kitlangton">Kit Langton</a> is now on YouTube. </li> </ul> <p> </p> <ul> <li>teej dv also live-streamed some <a href="https://x.com/teej_dv/status/1982812807352418652">Effect coding with Dillon Mulroy</a>.</li> </ul> <p> </p> <ul> <li><strong>Effect: the Good Parts, <code dir="auto">use workflow</code>, and Vercel Domains</strong> - a very interesting conversation between Dillon Mulroy and Swyx. </li> </ul> <p> </p> <ul> <li>Vercel shipped the Domains MCP in 1 day using the MCP from Effect/ai! <div> <article> <div> <a href="https://twitter.com/RhysSullivan/status/1983330738952179751" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1303727365265203200/0cgHOP3y_normal.jpg" alt="Rhys" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/RhysSullivan/status/1983330738952179751" target="_blank" rel="noopener noreferrer"> <div> <span title="Rhys">Rhys</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/RhysSullivan/status/1983330738952179751" target="_blank" rel="noopener noreferrer"> <span title="@RhysSullivan">@RhysSullivan</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=RhysSullivan" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/RhysSullivan/status/1983330738952179751" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <a href="https://twitter.com/MichaelArnaldi/status/1983329561875231045" target="_blank" rel="noopener noreferrer">Replying to @MichaelArnaldi</a><p><span>We shipped the domains MCP using the MCP from Effect/ai, was pretty magical how it just fit into our existing Effect http setup for the routing </span><a href="https://x.com/rhyssullivan/status/1983259368197165423?s=46" target="_blank" rel="noopener noreferrer">x.com/rhyssullivan/s…</a></p> <div> <article> <div> <a href="https://twitter.com/RhysSullivan/status/1983259368197165423" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1303727365265203200/0cgHOP3y_normal.jpg" alt="Rhys" width="20" height="20"> </div> </a> <div> <div> <span title="Rhys">Rhys</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> <div> <span title="@RhysSullivan">@RhysSullivan</span> </div> </div> </div> <p><span>Introducing the Vercel Domains MCP Our instant search, now available to your agent No auth required, just add the url and you&#39;re good to go</span></p> <div> <div> <a href="https://twitter.com/RhysSullivan/status/1983259368197165423" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:60.690121786197565%"></div> <img src="https://pbs.twimg.com/media/G4Xzb3MbQAA7p_w?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div> </article> </div><div> <a href="https://twitter.com/RhysSullivan/status/1983330738952179751" target="_blank" rel="noopener noreferrer" aria-label="12:31 AM · Oct 29, 2025"> <time datetime="2025-10-29T00:31:11.000Z"> 12:31 AM · Oct 29, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1983330738952179751" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 17 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>17</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1983330738952179751" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/RhysSullivan/status/1983330738952179751" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Dillon Mulroy livestreamed his new series <a href="https://www.twitch.tv/videos/2605152345?filter=archives&#x26;sort=time"><strong>Building a family recipe app with LiveStore, Effect, and CF Workers</strong></a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/stefvw93/effect-ui">Effect UI</a> - a reactive DOM rendering library built on Effect that enables declarative UI with streams and automatic updates. Project by <a href="https://stefvanwijchen.com/claude-code-weekend-effect-ui/">Stef van Wijchen</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/PaulJPhilp/effect-env">effect-json</a> – a type-safe, schema-driven JSON serialization for TypeScript and Effect. Project by <a href="https://github.com/PaulJPhilp">Paul Philp</a>.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/voidhashcom/effect-query">Effect Query</a> - an integration of Effect with Tanstack Query, fully type-safe and compatible with Effect RPC and Effect HttpApi, by <a href="https://github.com/KingDoxik">Dominik Vít</a> has been released.</li> </ul> <p> </p> <ul> <li>Appreciation post by Tanner Scadden from Vitalize Care - currently looking for a <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">full-stack engineer with Effect experience</a>. <div> <article> <div> <a href="https://twitter.com/TannerSDev/status/1982462041882542265" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1950955984517795840/ENz1RXVg_normal.jpg" alt="Tanner Scadden" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/TannerSDev/status/1982462041882542265" target="_blank" rel="noopener noreferrer"> <div> <span title="Tanner Scadden">Tanner Scadden</span> </div> </a> <div> <a href="https://twitter.com/TannerSDev/status/1982462041882542265" target="_blank" rel="noopener noreferrer"> <span title="@TannerSDev">@TannerSDev</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=TannerSDev" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/TannerSDev/status/1982462041882542265" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> is the most impressive technology I’ve gotten to work with. The type system, language extension, fibers, errors, dependency injection, clusters/workflows, etc. It’s nice reaching for one tool instead of multiple. Excited for 4.0 and APIs to be standardized!</span></p> <div> <a href="https://twitter.com/TannerSDev/status/1982462041882542265" target="_blank" rel="noopener noreferrer" aria-label="2:59 PM · Oct 26, 2025"> <time datetime="2025-10-26T14:59:17.000Z"> 2:59 PM · Oct 26, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1982462041882542265" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 153 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>153</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1982462041882542265" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/TannerSDev/status/1982462041882542265" target="_blank" rel="noopener noreferrer"> <span> Read 2 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Results from Johannes Schickling’s poll about Effect.</li> </ul> <div> <article> <div> <a href="https://twitter.com/schickling/status/1982905084897046565" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1624092671739408417/GGvOzADg_normal.jpg" alt="Johannes Schickling" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/schickling/status/1982905084897046565" target="_blank" rel="noopener noreferrer"> <div> <span title="Johannes Schickling">Johannes Schickling</span> </div> </a> <div> <a href="https://twitter.com/schickling/status/1982905084897046565" target="_blank" rel="noopener noreferrer"> <span title="@schickling">@schickling</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=schickling" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/schickling/status/1982905084897046565" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Poll time: How do you feel about </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span>?</span></p> <div> <a href="https://twitter.com/schickling/status/1982905084897046565" target="_blank" rel="noopener noreferrer" aria-label="8:19 PM · Oct 27, 2025"> <time datetime="2025-10-27T20:19:47.000Z"> 8:19 PM · Oct 27, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1982905084897046565" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 19 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>19</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1982905084897046565" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/schickling/status/1982905084897046565" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> <p> </p> <ul> <li>An extract from Sebastian Lorenz’s talk at the TypeScript Munich Meetup. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1982127744579260903" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1982127744579260903" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1982127744579260903" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1982127744579260903" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>LLMs 🤍 Effect Groundbreaking stuff from </span><a href="https://twitter.com/thefubhy" target="_blank" rel="noopener noreferrer">@thefubhy</a><span>'s TypeScript Munich Meetup talk. Watch from 00:47 </span></p> <div> <div> <div> <div style="width:unset;padding-bottom:57.5%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/1982125907172032514/img/c18kUVp7bW8wpWTr?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/1982125907172032514/vid/avc1/468x270/GxbdOlQK_Rjai5Ol.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/EffectTS_/status/1982127744579260903" target="_blank" rel="noopener noreferrer" aria-label="4:50 PM · Oct 25, 2025"> <time datetime="2025-10-25T16:50:55.000Z"> 4:50 PM · Oct 25, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1982127744579260903" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 49 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>49</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1982127744579260903" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1982127744579260903" target="_blank" rel="noopener noreferrer"> <span> Read 6 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>A reminder that the Effect NYC Meetup is happening on Nov 19. Be sure to register for the event and subscribe to <a href="https://luma.com/effect-community?k=c">Effect Community Events</a> calendar to stay on track with upcoming events. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1982797450613055565" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1982797450613055565" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1982797450613055565" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1982797450613055565" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect is heading to NYC! 🗽 Join us on Nov 19 at </span><a href="https://twitter.com/joinwarp" target="_blank" rel="noopener noreferrer">@joinwarp</a><span>'s office for an evening of talks, discussions &amp; networking. RSVP below: </span><a href="https://luma.com/ihoo6kxy" target="_blank" rel="noopener noreferrer">luma.com/ihoo6kxy</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1982797450613055565" target="_blank" rel="noopener noreferrer" aria-label="1:12 PM · Oct 27, 2025"> <time datetime="2025-10-27T13:12:05.000Z"> 1:12 PM · Oct 27, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1982797450613055565" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 36 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>36</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1982797450613055565" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1982797450613055565" target="_blank" rel="noopener noreferrer"> <span> Read 3 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>The sixth episode of <strong>Effect Office Hours</strong> went live on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the livestream on X(Twitter) below. <div> <article> <div> <a href="https://twitter.com/kitlangton/status/1983610096824590787" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/1983610096824590787" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/1983610096824590787" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/1983610096824590787" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Office Hours </span><a href="https://x.com/i/broadcasts/1gqxvrRRLDexB" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/kitlangton/status/1983610096824590787" target="_blank" rel="noopener noreferrer" aria-label="7:01 PM · Oct 29, 2025"> <time datetime="2025-10-29T19:01:15.000Z"> 7:01 PM · Oct 29, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1983610096824590787" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 19 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>19</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1983610096824590787" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/1983610096824590787" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>The second talk and the Panel discussion from the Effect Milan Meetup 2025 are now on YouTube.</li> </ul> <p> </p> <p><strong>🔥 Office Hours 5: Layers, Dependency Injection, Accessors, and Scopes in Effect</strong> is now on our YouTube Channel.</p> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1967543931031126523">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/5vhRg2zUt7UxP7ABof8XQ0">Spotify</a> and <a href="https://podcasts.apple.com/us/podcast/event-driven-systems-in-fintech-how-spiko-leverages/id1781879869?i=1000726884416">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and the benefits of integrating Effect into their tech stack.</p> <p>We’ve published our fifth episode with Samuel Briole, CTO of <a href="https://www.spiko.io/">Spiko</a>, a Paris-based FinTech startup building infrastructure for issuing regulated financial products on public blockchains, specifically risk-free products.</p> <p>Spiko utilizes Effect extensively from day one, for both backend and frontend development, particularly for managing asynchronous operations, API integrations, and smart contracts.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>A French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>A stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. 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Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/10/24/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/10/24/Learning Effect with teej dv & Kit Langton. Error Handling & Effectful Programming in TypeScript w/ Effect by Mattia Manzati. Effect Office Hours 5 & Rebuilding Contentlayer with Effect coding sessions. Fri, 24 Oct 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers create complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/318">Effect 3.18</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5480+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-core">Effect Core</h3><a aria-labelledby="effect-core" href="#effect-core"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5628">Make sure AsEffect is computed</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5644">Ensure model field accepts a string in Anthropic schemas</a> (Bug Fix)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://x.com/teej_dv">teej dv</a> was live with <a href="https://x.com/kitlangton">Kit Langton</a> for an Effect learning session. You can’t afford not to use Effect at this point.</li> </ul> <div> <article> <div> <a href="https://twitter.com/teej_dv/status/1981345962715910620" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1613151603564986368/dZoNeRKn_normal.jpg" alt="teej dv 🔭" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/teej_dv/status/1981345962715910620" target="_blank" rel="noopener noreferrer"> <div> <span title="teej dv 🔭">teej dv 🔭</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/teej_dv/status/1981345962715910620" target="_blank" rel="noopener noreferrer"> <span title="@teej_dv">@teej_dv</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=teej_dv" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/teej_dv/status/1981345962715910620" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Learning Effect?! </span><a href="https://x.com/i/broadcasts/1ypKdqoeWkgGW" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/teej_dv/status/1981345962715910620" target="_blank" rel="noopener noreferrer" aria-label="1:04 PM · Oct 23, 2025"> <time datetime="2025-10-23T13:04:23.000Z"> 1:04 PM · Oct 23, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1981345962715910620" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 172 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>172</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1981345962715910620" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/teej_dv/status/1981345962715910620" target="_blank" rel="noopener noreferrer"> <span> Read 13 replies </span> </a> </div> </article> </div> <p> </p> <ul> <li><a href="https://github.com/PaulJPhilp/effect-env">effect-env</a> – a TypeScript library for managing environment variables with type safety, schema validation, and security features, built with Effect. Project by <a href="https://github.com/PaulJPhilp">Paul Philp</a>.</li> </ul> <p> </p> <ul> <li><a href="https://alette-os.com/">Alette Signal</a> Beta release. A frontend data fetching library built with Effect.</li> </ul> <p> </p> <ul> <li><a href="https://github.com/devx-op/effectify/tree/master/packages/node/better-auth">@effectify/node-better-auth</a>,an integration of <a href="https://github.com/better-auth/better-auth">better-auth</a> with Effect for Node.js applications has been released.</li> </ul> <p> </p> <ul> <li><strong>End-to-end Effect</strong>, a talk by Sebastian Lorenz, was presented at the TypeScript Munich Meetup on October 20th.</li> </ul> <p> </p> <ul> <li>The first <a href="https://www.linkedin.com/posts/hugo-mufraggi-5b081b134_english-below-hier-jai-eu-le-plaisir-activity-7387417208991436800-frW1">Effect Meetup in Nice</a> happened on October 23rd, thanks to Hugo Muffraggi, who also shared that the next one is planned for early next year.</li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>The fifth episode of <strong>Effect Office Hours</strong> aired on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the livestream on X(Twitter) below. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1981072917841744274" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1981072917841744274" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1981072917841744274" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1981072917841744274" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Office Hours </span><a href="https://x.com/i/broadcasts/1OwGWeqBjaqxQ" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/1981072917841744274" target="_blank" rel="noopener noreferrer" aria-label="6:59 PM · Oct 22, 2025"> <time datetime="2025-10-22T18:59:24.000Z"> 6:59 PM · Oct 22, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1981072917841744274" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 17 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>17</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1981072917841744274" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1981072917841744274" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>The first talk from the Effect Milan Meetup 2025, <strong>Error Handling &amp; Effectful Programming in TypeScript w/ Effect</strong> by Mattia Manzati, is now on YouTube. </li> </ul> <p> </p> <p><strong>🔥 Effect Office Hours 4: Effect Atom, Effect API, Tracing &#x26; Telemetry, File System Abstractions…</strong> and <strong>Rebuilding Contentlayer w/Effect (Part 19)</strong> are now on our YouTube Channel.</p> <p> </p> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1967543931031126523">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/5vhRg2zUt7UxP7ABof8XQ0">Spotify</a> and <a href="https://podcasts.apple.com/us/podcast/event-driven-systems-in-fintech-how-spiko-leverages/id1781879869?i=1000726884416">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and benefits of integrating Effect into their tech stack.</p> <p>We’ve published our fifth episode with Samuel Briole, CTO of <a href="https://www.spiko.io/">Spiko</a>, a Paris-based FinTech startup building infrastructure for issuing regulated financial products on public blockchains, specifically risk-free products.</p> <p>Spiko utilizes Effect extensively, from day one, for both backend and frontend development, particularly for managing asynchronous operations, API integrations, and smart contracts.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Supermemory</strong>: <a href="https://x.com/i/jobs/1928194391946186862">Founding Backend / Infrastructure Engineer</a></p> </li> <li> <p><strong>Ressio</strong>: <a href="https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446">Senior full stack Engineer</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>A French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>A stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effecthttps://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/10/17/https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/blog/this-week-in-effect/2025/10/17/Visual Effect is now open-source! Effect Milan Meetup 🇮🇹. Effect Office Hours 4. Twitch–Spotify Integration and Effect AI SDK Refactor coding sessions. Fri, 17 Oct 2025 00:00:00 GMT<p>Hi Effecters!</p> <p>Welcome back to This Week In Effect (<strong>TWIE</strong>) - your weekly update of the latest developments in the Effect community and ecosystem.</p> <p>Effect is a powerful TypeScript library that helps developers create complex, synchronous, and asynchronous programs. One key feature that sets Effect apart is how it leverages structured concurrency to provide features such as async cancellation and safe resource management, making it easier to build robust, scalable, and efficient programs.</p> <p>To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!</p> <ul> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/introduction/">Effect Documentation</a></li> <li><a href="https://website-content-git-mirelaprifti-patch-1-effect-ts.vercel.app/docs/getting-started/installation/">Installing Effect</a></li> </ul> <p><strong>Recent major updates:</strong></p> <ul> <li><a href="https://effect.website/blog/releases/effect/318">Effect 3.18</a> Release.</li> <li><a href="https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0">Effect AI SDK</a> Release.</li> <li>Durable workflows in TypeScript with <a href="https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md"><code dir="auto">@effect/workflow</code></a> - currently in alpha.</li> <li>The <a href="https://discord.gg/effect-ts">Effect community</a> on Discord reached 5400+ members!</li> </ul> <p> </p> <div tabindex="-1"><h2 id="technology">Technology</h2><a aria-labelledby="technology" href="#technology"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Here are all the technical changes from the past week.</p> <div tabindex="-1"><h3 id="effect-ai">Effect AI</h3><a aria-labelledby="effect-ai" href="#effect-ai"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5634">Ensure tool call parts are emitted immediately when streaming</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-cluster">Effect Cluster</h3><a aria-labelledby="effect-cluster" href="#effect-cluster"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5640">Use external interruption for workflow suspend</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5642">Fix ReferenceError in NodeSocket.fromNet</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-platform">Effect Platform</h3><a aria-labelledby="effect-platform" href="#effect-platform"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5638">Don’t use removeAllListeners in NodeSocket.fromNet</a> (Bug Fix)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5642">Fix ReferenceError in NodeSocket.fromNet</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-rpc">Effect RPC</h3><a aria-labelledby="effect-rpc" href="#effect-rpc"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5642">Fix ReferenceError in NodeSocket.fromNet</a> (Bug Fix)</li> </ul> <div tabindex="-1"><h3 id="effect-workflow">Effect Workflow</h3><a aria-labelledby="effect-workflow" href="#effect-workflow"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li><a href="https://github.com/Effect-TS/effect/pull/5640">Use external interruption for workflow suspend</a> (Improvement)</li> <li><a href="https://github.com/Effect-TS/effect/pull/5642">Fix ReferenceError in NodeSocket.fromNet</a> (Bug Fix)</li> </ul> <p> </p> <div tabindex="-1"><h2 id="community-highlights">Community Highlights</h2><a aria-labelledby="community-highlights" href="#community-highlights"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li> <p>More teams are bringing Effect into their codebases. This week, we learned about <strong>Notion</strong> and <strong>Supermemory</strong> joined the list!</p> <div> <article> <div> <a href="https://twitter.com/_clem/status/1977854423658283220" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1970609857079152641/DEYIKqd3_normal.jpg" alt="Jonathan Clem" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/_clem/status/1977854423658283220" target="_blank" rel="noopener noreferrer"> <div> <span title="Jonathan Clem">Jonathan Clem</span> </div> </a> <div> <a href="https://twitter.com/_clem/status/1977854423658283220" target="_blank" rel="noopener noreferrer"> <span title="@_clem">@_clem</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=_clem" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/_clem/status/1977854423658283220" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>May or may not have merged *just a little* </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> code into main at Notion...</span></p> <div> <a href="https://twitter.com/_clem/status/1977854423658283220" target="_blank" rel="noopener noreferrer" aria-label="9:50 PM · Oct 13, 2025"> <time datetime="2025-10-13T21:50:16.000Z"> 9:50 PM · Oct 13, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1977854423658283220" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 87 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>87</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1977854423658283220" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/_clem/status/1977854423658283220" target="_blank" rel="noopener noreferrer"> <span> Read 7 replies </span> </a> </div> </article> </div> <div> <article> <div> <a href="https://twitter.com/DhravyaShah/status/1978553760352792791" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1813041528278843392/u50EIuLZ_normal.jpg" alt="Dhravya Shah" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/DhravyaShah/status/1978553760352792791" target="_blank" rel="noopener noreferrer"> <div> <span title="Dhravya Shah">Dhravya Shah</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/DhravyaShah/status/1978553760352792791" target="_blank" rel="noopener noreferrer"> <span title="@DhravyaShah">@DhravyaShah</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=DhravyaShah" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/DhravyaShah/status/1978553760352792791" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Dependency injection with </span><a href="https://twitter.com/EffectTS_" target="_blank" rel="noopener noreferrer">@EffectTS_</a><span> just feels insanely nice especially when using cloud providers - you can have a Cloud1Resource, Cloud2Resource and a NodeResource. Swap between them based on requirements of customers, or availability issues.</span></p> <div> <div> <a href="https://twitter.com/DhravyaShah/status/1978553760352792791" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:56.191950464396285%"></div> <img src="https://pbs.twimg.com/media/G3U7uzFaIAAmP6h?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/DhravyaShah/status/1978553760352792791" target="_blank" rel="noopener noreferrer" aria-label="8:09 PM · Oct 15, 2025"> <time datetime="2025-10-15T20:09:10.000Z"> 8:09 PM · Oct 15, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1978553760352792791" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 286 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>286</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1978553760352792791" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/DhravyaShah/status/1978553760352792791" target="_blank" rel="noopener noreferrer"> <span> Read 15 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li><strong>I’m Abandoning TanStack Query: Effect Atom Crash Course</strong> by Lucas Barake. </li> </ul> <p> </p> <ul> <li> <p><a href="https://github.com/kitlangton/visual-effect">Visual Effect</a> by Kit Langton, an interactive visualizer for Effect programs, is now open source and built with Effect!</p> <div> <article> <div> <a href="https://twitter.com/kitlangton/status/1976804739208953917" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/1460264536464924672/ZiJsv04a_normal.jpg" alt="Kit Langton" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/kitlangton/status/1976804739208953917" target="_blank" rel="noopener noreferrer"> <div> <span title="Kit Langton">Kit Langton</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/kitlangton/status/1976804739208953917" target="_blank" rel="noopener noreferrer"> <span title="@kitlangton">@kitlangton</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=kitlangton" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/kitlangton/status/1976804739208953917" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Visual Effect is now Open Source 🫡 </span></p> <div> <div> <div> <div style="width:unset;padding-bottom:77.15674362089915%"></div> <video poster="https://pbs.twimg.com/amplify_video_thumb/1976804681268490240/img/joxdM4i4Ghw_I7lW?format=jpg&name=small" controls="" muted="" preload="metadata"> <source src="https://video.twimg.com/amplify_video/1976804681268490240/vid/avc1/932x720/PGql7ovCEk3r7mk1.mp4" type="video/mp4"> </video> </div> </div> </div><div> <a href="https://twitter.com/kitlangton/status/1976804739208953917" target="_blank" rel="noopener noreferrer" aria-label="12:19 AM · Oct 11, 2025"> <time datetime="2025-10-11T00:19:11.000Z"> 12:19 AM · Oct 11, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1976804739208953917" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 5.5K likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>5.5K</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1976804739208953917" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/kitlangton/status/1976804739208953917" target="_blank" rel="noopener noreferrer"> <span> Read 71 replies </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li> <p>We had a blast on Thursday, Oct 16, at the Effect Meetup in Milan 🇮🇹. Huge thanks to Davide Di Pumpo &amp; Prima for organizing and hosting the event – and to our speakers Mattia Manzati &amp; Mattia Crovero for their great talks!</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Kicking off our first Effect Meetup in Milan 🇮🇹 </span></p> <div> <div> <a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:112.5%"></div> <img src="https://pbs.twimg.com/media/G3ZccczXYAAmfSX?format=jpg&name=small" alt="Image" draggable="true"> </a><a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer"> <div style="padding-bottom:112.5%"></div> <img src="https://pbs.twimg.com/media/G3ZccczXwAEb2-3?format=jpg&name=small" alt="Image" draggable="true"> </a> </div> </div><div> <a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer" aria-label="5:08 PM · Oct 16, 2025"> <time datetime="2025-10-16T17:08:43.000Z"> 5:08 PM · Oct 16, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1978870735431954700" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 37 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>37</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1978870735431954700" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1978870735431954700" target="_blank" rel="noopener noreferrer"> <span> Read 1 reply </span> </a> </div> </article> </div> </li> </ul> <p> </p> <ul> <li>Don’t forget to subscribe to the <a href="https://luma.com/effect-community?k=c">Effect Community Events</a> calendar to stay updated on the latest news and upcoming events! <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1977356128515223870" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1977356128515223870" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1977356128515223870" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1977356128515223870" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Upcoming Effect events: 🔥 Office Hours – Oct 15 (every Wed) 🇮🇹 Milan Meetup – Oct 16 🇩🇪 Munich TypeScript Talk – Oct 20 🇫🇷 Intro to Effect, Nice – Oct 23 🇺🇸 SF Meetup – Oct 30 🇺🇸 NYC Meetup - Nov 19 Sign up for any event or subscribe below for updates: </span><a href="https://luma.com/effect-community?k=c" target="_blank" rel="noopener noreferrer">luma.com/effect-communi…</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1977356128515223870" target="_blank" rel="noopener noreferrer" aria-label="12:50 PM · Oct 12, 2025"> <time datetime="2025-10-12T12:50:13.000Z"> 12:50 PM · Oct 12, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1977356128515223870" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 24 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>24</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1977356128515223870" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1977356128515223870" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> </ul> <p> </p> <div tabindex="-1"><h2 id="effect-content-update">Effect Content Update</h2><a aria-labelledby="effect-content-update" href="#effect-content-update"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <ul> <li>The fourth episode of <strong>Effect Office Hours</strong> aired on Wednesday! We will publish an edited version on our YouTube channel soon. In the meantime, you can watch the livestream on X(Twitter) below. <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1978536536791490732" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1978536536791490732" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1978536536791490732" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1978536536791490732" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Office Hours </span><a href="https://x.com/i/broadcasts/1PlJQOjaqkqKE" target="_blank" rel="noopener noreferrer">x.com/i/broadcasts/1…</a></p> <div> <a href="https://twitter.com/EffectTS_/status/1978536536791490732" target="_blank" rel="noopener noreferrer" aria-label="7:00 PM · Oct 15, 2025"> <time datetime="2025-10-15T19:00:44.000Z"> 7:00 PM · Oct 15, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1978536536791490732" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 13 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>13</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1978536536791490732" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1978536536791490732" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> </li> </ul> <p> </p> <p><strong>🔥 Effect Office Hours 3: Effect Atom, Ecosystem Tooling, Effect LSP</strong>, <strong>PART 4: Developing a Twitch–Spotify Integration</strong>, and the <strong>Effect AI SDK Refactor Series</strong> are now on our YouTube Channel.</p> <p> </p> <p> </p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1978481392863551795" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1978481392863551795" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1978481392863551795" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1978481392863551795" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Last month, we shipped a major refactor of the Effect AI SDK! 🚀 Now you can watch it come together step by step with Maxwell Brown </span><a href="https://twitter.com/imax153" target="_blank" rel="noopener noreferrer">@imax153</a><span>. </span><a href="https://youtube.com/playlist?list=PLDf3uQLaK2B-ObUBrXKgXAYCikKoVb-gh&si=_l3IyOfOy1hUS1Tg" target="_blank" rel="noopener noreferrer">youtube.com/playlist?list=…</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1978481392863551795" target="_blank" rel="noopener noreferrer" aria-label="3:21 PM · Oct 15, 2025"> <time datetime="2025-10-15T15:21:37.000Z"> 3:21 PM · Oct 15, 2025 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1978481392863551795" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 15 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>15</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1978481392863551795" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1978481392863551795" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="cause--effect-podcast">Cause &#x26; Effect Podcast</h2><a aria-labelledby="cause--effect-podcast" href="#cause--effect-podcast"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Don’t forget to listen to our <strong>Cause &#x26; Effect</strong> podcast hosted by Johannes Schickling and available on <a href="https://www.youtube.com/@effect-ts">YouTube</a>, <a href="https://x.com/EffectTS_/status/1967543931031126523">X(Twitter)</a>, and audio platforms like <a href="https://open.spotify.com/episode/5vhRg2zUt7UxP7ABof8XQ0">Spotify</a> and <a href="https://podcasts.apple.com/us/podcast/event-driven-systems-in-fintech-how-spiko-leverages/id1781879869?i=1000726884416">Apple Podcast</a>.</p> <p>This podcast highlights stories from software engineers and companies using Effect in production. Each episode explores their journey of adopting Effect, including the learning process, challenges faced, and benefits of integrating Effect into their tech stack.</p> <p>We’ve published our fifth episode with Samuel Briole, CTO of <a href="https://www.spiko.io/">Spiko</a>, a Paris-based FinTech startup building infrastructure for issuing regulated financial products on public blockchains, specifically risk-free products.</p> <p>Spiko utilizes Effect extensively, from day one, for both backend and frontend development, particularly for managing asynchronous operations, API integrations, and smart contracts.</p> <p> </p> <div tabindex="-1"><h2 id="effect-job-opportunities">Effect Job Opportunities</h2><a aria-labelledby="effect-job-opportunities" href="#effect-job-opportunities"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:</p> <ul> <li> <p><strong>Expand.ai</strong>: <a href="https://www.expand.ai/careers/founding-engineer">Founding Engineer</a></p> </li> <li> <p><strong>Platonic Systems</strong>: <a href="https://twitter.com/platonicsystems/status/1861470819861311945">Remote Effect Engineers</a></p> </li> <li> <p><strong>Inato</strong>: <a href="https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44">Product Engineers / Fullstack Engineers</a></p> </li> <li> <p><strong>Medbill.ai</strong>: <a href="https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH">Founding Software Engineers (full-stack and backend)</a></p> </li> <li> <p><strong>Oneiro Solutions</strong>: Software Engineer - Core Team. <a href="https://discord.com/channels/795981131316985866/796153351372275743">Join Effect Discord</a> and DM <em>leighman</em> for further info.</p> </li> <li> <p><strong>Microsub</strong>: <a href="https://x.com/0xdownshift/status/1880013835878154510">TS Developer</a></p> </li> <li> <p><strong>Samsung Food</strong>: <a href="https://whisk.bamboohr.com/careers/110">Full Stack Developer</a></p> </li> <li> <p><strong>Margins</strong>: <a href="https://margins.app/jobs/product-engineer">Product Engineer</a></p> </li> <li> <p><strong><a href="https://precurion.com/">Precurion</a></strong> looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Vitalize Care</strong> is hiring a full-stack engineer with Effect experience: <a href="https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a">Full-Stack Engineer</a></p> </li> <li> <p><strong>Embedded Insurance</strong> is hiring for a <a href="https://embeddedinsurance.bamboohr.com/careers/23">Senior Software Engineering</a> position.</p> </li> <li> <p><strong>Betalyra</strong>, an AI consulting company from Portugal, is looking for a part-time freelance software engineer (TypeScript/Effect) with AI experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>Software Intelligence Works</strong>: <a href="https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648">Senior Full-Stack Engineer</a></p> </li> <li> <p><strong>14.ai</strong>: <a href="https://14.ai/careers">Founding engineer</a></p> </li> <li> <p><strong>Wander</strong> is hiring <a href="https://ship.wander.com">Software Developers</a> with experience in Effect.</p> </li> <li> <p><strong>Glide</strong>: <a href="https://www.glideapps.com/jobs/frontend-product-engineer">Senior Frontend Product Engineer</a></p> </li> <li> <p><strong>Stealth team</strong> looking for a software engineer with Effect experience – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258">our Discord</a>.</p> </li> <li> <p><strong>A French-speaking</strong> startup team led by Stephan Le Dorze is looking for a freelancer to join them - <a href="https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb">see his LinkedIn post</a> for more details.</p> </li> <li> <p><strong>Freckle.io</strong> is hiring <a href="https://x.com/code_typist/status/1930326662677434561">Platform Engineers</a> with experience in Effect.</p> </li> <li> <p><strong>A stealth team</strong> that has already scaled their product to 50K daily active users in the last year, is looking for <a href="https://x.com/wireless_dev/status/1930314012723687739">Effect Developers</a>. DM <a href="https://x.com/wireless_dev">wireless</a> on X for more info.</p> </li> <li> <p>Job opening for <a href="https://note.com/luma/n/n679d4dcdb363">Japanese-speaking developers</a></p> </li> <li> <p><strong>VST</strong>: <a href="https://www.linkedin.com/jobs/view/3854111540/">Senior Full Stack Software Engineer</a></p> </li> <li> <p><strong>Globe Commerce</strong>: <a href="https://www.linkedin.com/jobs/view/4264203054">Founding Product Engineer</a></p> </li> <li> <p><strong>Introw</strong>: <a href="https://join.com/companies/introw/14395111-staff-software-engineer">Staff Software Engineer</a></p> </li> <li> <p><strong>Gale</strong>: <a href="https://forms.galevisa.com/r/m6gr7e">SWE Intern - Remote (CAN/US)</a></p> </li> <li> <p><strong>Heartbeat</strong>: <a href="https://jobs.heartbeat.chat/35182">Senior Software Engineer</a></p> </li> <li> <p><strong>Superwall</strong>: <a href="https://x.com/jakemor/status/1972770955500876070">Full-stack Mobile Developer</a></p> </li> <li> <p><strong>spring.new</strong>, Anthropic’s flagship customer, is hiring engineers experienced in Effect. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196">our Discord</a>.</p> </li> <li> <p><strong>ManageSpace</strong> is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098">our Discord</a>.</p> </li> <li> <p><strong>coteach.ai</strong> is looking for a Software Engineer – see the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290">our Discord</a> and DM <em>Peter Edmonds</em> for further info.</p> </li> <li> <p><strong>Small SaaS team</strong> is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412">our Discord</a>, DM <em>jonpage</em> for further info.</p> </li> <li> <p><strong>PhosPhor</strong> is <a href="https://phosphor.co/">hiring engineers</a> experienced in Effect. You may also reach out to the Phosphor team on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067">our Discord</a>.</p> </li> <li> <p><strong>Warp</strong> is hiring a <a href="https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc">Product Engineer</a></p> </li> <li> <p><strong>Sellhub</strong> is looking for a Backend Engineer. See the job posting in the <code dir="auto">#job-board</code> channel on <a href="https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652">our Discord</a>.</p> </li> </ul> <p><em>Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies.</em></p> <p> </p> <div tabindex="-1"><h2 id="effect-merch-store">Effect Merch Store</h2><a aria-labelledby="effect-merch-store" href="#effect-merch-store"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>The <a href="https://effect.website/merch">Effect Merch Store</a> offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through <a href="https://www.printful.com/">Printful</a>.</p> <div> <article> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <img src="https://pbs.twimg.com/profile_images/2022984508979494912/AQvX8v7M_normal.png" alt="Effect | TypeScript at Scale" width="48" height="48"> </div> <div> <div></div> </div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <div> <span title="Effect | TypeScript at Scale">Effect | TypeScript at Scale</span> </div> <div><svg viewBox="0 0 24 24" aria-label="Verified account" role="img"> <g> <path d="M22.25 12c0-1.43-.88-2.67-2.19-3.34.46-1.39.2-2.9-.81-3.91s-2.52-1.27-3.91-.81c-.66-1.31-1.91-2.19-3.34-2.19s-2.67.88-3.33 2.19c-1.4-.46-2.91-.2-3.92.81s-1.26 2.52-.8 3.91c-1.31.67-2.2 1.91-2.2 3.34s.89 2.67 2.2 3.34c-.46 1.39-.21 2.9.8 3.91s2.52 1.26 3.91.81c.67 1.31 1.91 2.19 3.34 2.19s2.68-.88 3.34-2.19c1.39.45 2.9.2 3.91-.81s1.27-2.52.81-3.91c1.31-.67 2.19-1.91 2.19-3.34zm-11.71 4.2L6.8 12.46l1.41-1.42 2.26 2.26 4.8-5.23 1.47 1.36-6.2 6.77z"></path> </g> </svg></div> </a> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span title="@EffectTS_">@EffectTS_</span> </a> <div> <span>·</span> <a href="https://twitter.com/intent/follow?screen_name=EffectTS_" target="_blank" rel="noopener noreferrer"> Follow </a> </div> </div> </div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="View on Twitter"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M18.244 2.25h3.308l-7.227 8.26 8.502 11.24H16.17l-5.214-6.817L4.99 21.75H1.68l7.73-8.835L1.254 2.25H8.08l4.713 6.231zm-1.161 17.52h1.833L7.084 4.126H5.117z"></path> </g> </svg> </a> </div> <p><span>Effect Merch is here! We’re excited to announce the launch of our Effect merch page! Grab your favorite swag &amp; show your love for Effect in style! 🧢 </span><a href="https://effect.website/merch" target="_blank" rel="noopener noreferrer">effect.website/merch</a><span></span></p> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="10:32 AM · Dec 16, 2024"> <time datetime="2024-12-16T10:32:33.000Z"> 10:32 AM · Dec 16, 2024 </time> </a> <a href="https://help.twitter.com/en/twitter-for-websites-ads-info-and-privacy" target="_blank" rel="noopener noreferrer" aria-label="Twitter for Websites, Ads Information and Privacy"> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M13.5 8.5c0 .83-.67 1.5-1.5 1.5s-1.5-.67-1.5-1.5S11.17 7 12 7s1.5.67 1.5 1.5zM13 17v-5h-2v5h2zm-1 5.25c5.66 0 10.25-4.59 10.25-10.25S17.66 1.75 12 1.75 1.75 6.34 1.75 12 6.34 22.25 12 22.25zM20.25 12c0 4.56-3.69 8.25-8.25 8.25S3.75 16.56 3.75 12 7.44 3.75 12 3.75s8.25 3.69 8.25 8.25z"></path> </g> </svg> </a> </div> <div> <a href="https://twitter.com/intent/like?tweet_id=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Like. This Tweet has 20 likes"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M20.884 13.19c-1.351 2.48-4.001 5.12-8.379 7.67l-.503.3-.504-.3c-4.379-2.55-7.029-5.19-8.382-7.67-1.36-2.5-1.41-4.86-.514-6.67.887-1.79 2.647-2.91 4.601-3.01 1.651-.09 3.368.56 4.798 2.01 1.429-1.45 3.146-2.1 4.796-2.01 1.954.1 3.714 1.22 4.601 3.01.896 1.81.846 4.17-.514 6.67z"></path> </g> </svg> </div> <span>20</span> </a> <a href="https://twitter.com/intent/tweet?in_reply_to=1868605126862385238" target="_blank" rel="noopener noreferrer" aria-label="Reply to this Tweet on Twitter"> <div> <svg viewBox="0 0 24 24" aria-hidden="true"> <g> <path d="M1.751 10c0-4.42 3.584-8 8.005-8h4.366c4.49 0 8.129 3.64 8.129 8.13 0 2.96-1.607 5.68-4.196 7.11l-8.054 4.46v-3.69h-.067c-4.49.1-8.183-3.51-8.183-8.01z"></path> </g> </svg> </div> <span>Reply</span> </a><!-- <TweetActionsCopy tweet={tweet} /> --> </div> <div> <a href="https://twitter.com/EffectTS_/status/1868605126862385238" target="_blank" rel="noopener noreferrer"> <span> Read more on Twitter </span> </a> </div> </article> </div> <p> </p> <div tabindex="-1"><h2 id="closing-notes">Closing Notes</h2><a aria-labelledby="closing-notes" href="#closing-notes"><span aria-hidden="true"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>That’s all for this week. Thank you for being a vital part of our community. Your feedback is highly valued as we fine-tune this format. Feel free to share your thoughts, and we’ll do our best to tailor it to the needs of our community.</p> <p><em>Effect Community Team</em></p>This Week In Effect