blog/twie_2026_01_02 (#1272)

Co-authored-by: Mirela Prifti <57798527+mirelaprifti@users.noreply.github.com>

Author: DadeSko

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+---
+pagefind: false
+title: This Week in Effect - 2026-01-02
+excerpt: Happy New Year! 🎉
+date: 2026-01-02
+authors:
+  - davide_scognamiglio
+  - mirela_prifti
+  - michael_arnaldi
+tags:
+  - This Week In Effect
+---
+
+import { YouTube } from "@astro-community/astro-embed-youtube"
+import Tweet from "astro-tweet"
+import TwitchPlayerNonInteractive from "@/components/TwitchPlayerNonInteractive.astro"
+
+Hi Effecters!
+
+Welcome back to This Week In Effect (**TWIE**) - your weekly update of the latest developments in the Effect community and ecosystem.
+
+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.
+
+To get started, below you’ll find links to our documentation as well as our guide for installing Effect. Enjoy!
+
+- [Effect Documentation](/docs/getting-started/introduction/)
+- [Installing Effect](/docs/getting-started/installation/)
+
+
+**Recent major updates:**
+
+- [Effect 3.19](https://effect.website/blog/releases/effect/319) Release.
+- [Effect AI SDK](https://github.com/Effect-TS/effect/releases/tag/%40effect%2Fai%400.27.0) Release.
+- Durable workflows in TypeScript with [`@effect/workflow`](https://github.com/Effect-TS/effect/blob/main/packages/workflow/README.md) - currently in alpha.
+- The [Effect community](https://discord.gg/effect-ts) on Discord reached 5920+ members!
+
+ 
+
+## Technology
+
+Here are all the technical changes from the past week.
+
+### Effect AI
+- [Fix openai streaming decoding error when using provider webSearch tool](https://github.com/Effect-TS/effect/pull/5938) (Bug Fix)
+- [Fix Prompt.fromResponseParts when input contains a provider executed tool](https://github.com/Effect-TS/effect/pull/5944) (Bug Fix)
+
+### Effect Platform
+- [Document subtle CORS middleware allowedHeaders behavior](https://github.com/Effect-TS/effect/pull/5936) (Bug Fix)
+- [Fix HttpServerResponse.fromWeb losing Content-Type header](https://github.com/Effect-TS/effect/pull/5940) (Bug Fix)
+
+ 
+
+## Happy New Year from the Effect Team
+
+Happy New Year! ✨ As we step into 2026, here’s a quick look back at what shaped Effect in 2025.
+
+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.
+
+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.
+
+For a deeper dive into what happened in 2025, check out our [year-in-review blog post](https://effect.website/blog/effect-2025-year-in-review/).
+
+Here's to building even more in 2026!
+
+  <Tweet id="2006692235077705742" />
+
+*The Effect Team*
+
+&nbsp;
+
+## Community Highlights
+
+- Dane Knecht shared his dev setup, which includes Effect deployed to Cloudflare.
+  <Tweet id="2005857510096281604" />
+
+&nbsp;
+
+- A visual guide for `Effect.all` by Kishore.
+  <Tweet id="2005740882860114075" />
+
+&nbsp;
+
+- The Warp team shipped their first customer-facing API in just 2 days using Effect and Drizzle ORM.
+  <Tweet id="2006043524148449372" />
+
+&nbsp;
+
+- [`effect-web-midi`](https://github.com/nikelborm/effect-garden/tree/main/packages/effect-web-midi) - 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 [nikelborm](https://github.com/nikelborm).
+
+&nbsp;
+
+- [`effect-streamdown-terminal`](https://github.com/sogoiii/effect-streamdown-terminal) - A streaming markdown renderer for modern terminals built with Effect-TS, allowing content to appear incrementally as it's received. Project by [sogoiii](https://github.com/sogoiii).
+
+&nbsp;
+
+## Cause & Effect Podcast
+
+Don't forget to listen to our **Cause & Effect** podcast hosted by Johannes Schickling and available on [YouTube](https://www.youtube.com/@effect-ts), [X(Twitter)](https://x.com/EffectTS_/status/2000913813756100778), and audio platforms like [Spotify](https://open.spotify.com/episode/3zMxvB8KVzcBwFarOuxZCb) and [Apple Podcast](https://podcasts.apple.com/it/podcast/reliable-payroll-systems-in-typescript-with-effect-7/id1781879869?i=1000741526055&l=en-GB).
+
+We've published our seventh episode with Adam Rankin, CTO at [Warp](https://www.joinwarp.com/), 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 & payroll systems.
+
+<YouTube
+  id="https://www.youtube.com/embed/zxCR6rG4snY?si=E4KoHi_G7RkyusNL"
+  title="Reliable Payroll Systems in TypeScript with Effect | Adam Rankin | Cause & Effect 7"
+/>
+
+&nbsp;
+
+## Effect Job Opportunities
+
+More and more companies are adopting Effect in their projects. Here’s a list of companies looking for software engineers with Effect experience:
+
+- **14.ai**: [Founding engineer](https://14.ai/careers)
+
+- **Betalyra**, 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 `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258).
+
+- **coteach.ai** is looking for a Software Engineer – see the job posting in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1394724166309253290) and DM *Peter Edmonds* for further info.
+
+- **Embedded Insurance** is hiring for a [Senior Software Engineering](https://embeddedinsurance.bamboohr.com/careers/23) position.
+
+- **Expand.ai**: [Founding Engineer](https://www.expand.ai/careers/founding-engineer)
+
+- **Freckle.io** is hiring [Platform Engineers](https://x.com/code_typist/status/1930326662677434561) with experience in Effect.
+
+- **Gale**: [SWE Intern - Remote (CAN/US)](https://forms.galevisa.com/r/m6gr7e)
+
+- **Glide**: [Senior Frontend Product Engineer](https://www.glideapps.com/jobs/frontend-product-engineer)
+
+- **Globe Commerce**: [Founding Product Engineer](https://www.linkedin.com/jobs/view/4264203054)
+
+- **Goblins** is looking for a Product Founding Engineer. See the job posting in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1439740311277404231).
+
+- **Heartbeat**: [Senior Software Engineer](https://jobs.heartbeat.chat/35182) 
+
+- **Inato**: [Product Engineers / Fullstack Engineers](https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44)
+
+- **Interfere**: [Founding Product Engineer](https://interfere.com/careers/founding-product-engineer-43d5f5aa-1887-4c7d-a8b2-2017169911fd/apply) and [Founding AI Engineer](https://interfere.com/careers/founding-ai-engineer-003772a3-6bcf-4f57-8c3c-5d840117b5e9/apply) 
+
+- **Introw**: [Staff Software Engineer](https://join.com/companies/introw/14395111-staff-software-engineer)
+
+- **Magentus**: [GenAI Solutions Engineer](https://www.magentus.com/career/genai-solutions-engineer/?r=a)
+
+- **ManageSpace** is looking for a Senior Developer to mentor other developers and migrate to Effect – see the job posting in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1389557459949060098).
+
+- **Margins**: [Product Engineer](https://margins.app/jobs/product-engineer)
+
+- **Medbill.ai**: [Founding Software Engineers (full-stack and backend)](https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH)
+
+- **Microsub**: [TS Developer](https://x.com/0xdownshift/status/1880013835878154510)
+
+- **Oneiro Solutions**: Software Engineer - Core Team. [Join Effect Discord](https://discord.com/channels/795981131316985866/796153351372275743) and DM *leighman* for further info.
+
+- **PhosPhor** is [hiring engineers](https://phosphor.co/) experienced in Effect. You may also reach out to the Phosphor team on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1418407399139578067).
+
+- **Platonic Systems**: [Remote Effect Engineers](https://twitter.com/platonicsystems/status/1861470819861311945)
+
+- **[Precurion](https://precurion.com/)** looking for a remote‑first Founding Engineer with Effect experience – See the job posting in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258).
+
+- **Ressio**: [Senior full stack Engineer](https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446)
+
+- **Samsung Food**: [Full Stack Developer](https://whisk.bamboohr.com/careers/110)
+
+- **Sellhub** is looking for a Backend Engineer. See the job posting in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1423684096428736652).
+
+- **Software Intelligence Works**: [Senior Full-Stack Engineer](https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648)
+
+- **spring.new**, Anthropic's flagship customer, is hiring engineers experienced in Effect. See the job posting in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1405134163287343196).
+
+- **Supermemory**: [Founding Backend / Infrastructure Engineer](https://x.com/i/jobs/1928194391946186862)
+
+- **Superwall**: [Full-stack Mobile Developer](https://x.com/jakemor/status/1972770955500876070)
+
+- **Tranched**: [Full-stack Engineer Web3](https://tranched.fi/careers/fullstack-developer-web3)
+
+- **Vitalize Care** is hiring a full-stack engineer with Effect experience: [Full-Stack Engineer](https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a)
+
+- **VST**: [Senior Full Stack Software Engineer](https://www.linkedin.com/jobs/view/3854111540/)
+
+- **Wander** is hiring [Software Developers](https://ship.wander.com) with experience in Effect.
+
+- **Warp** is hiring a [Product Engineer](https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc)
+
+- **French-speaking** startup team led by Stephan Le Dorze is looking for a freelancer to join them - [see his LinkedIn post](https://www.linkedin.com/posts/stephaneledorze_recherche-senior-typescript-developer-activity-7384894173604265984-btNb) for more details.
+
+- Job opening for [Japanese-speaking developers](https://note.com/luma/n/n679d4dcdb363)
+
+- **Small SaaS team** is looking for a part-time Effect Developer to implement Effect in their stack. The job posting is available in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1397684638834491412), DM *jonpage* for further info.
+
+- [**Solid**](https://trysolid.com/) is hiring its early engineering team (Bay Area). The job posting is available in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1455623052636459209)
+
+- **Stealth team** looking for a software engineer with Effect experience – see the job posting in the `#job-board` channel on [our Discord](https://discord.com/channels/795981131316985866/796153351372275743/1362610725931061258).
+
+- **Stealth team** that has already scaled their product to 50K daily active users in the last year, is looking for [Effect Developers](https://x.com/wireless_dev/status/1930314012723687739). DM [wireless](https://x.com/wireless_dev) on X for more info.
+
+
+_Disclaimer: Please note that these job postings are shared for informational purposes, and we encourage applicants to verify details directly with the hiring companies._
+
+
+&nbsp;
+## Effect Merch Store
+
+The [Effect Merch Store](https://effect.website/merch) offers a selection of Effect-branded items designed for the community. All orders are processed and fully managed through [Printful](https://www.printful.com/).
+
+<Tweet id="1868605126862385238" />
+
+
+&nbsp;
+## Closing Notes
+
+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.
+
+_Effect Community Team_