blog/twie_2025_11_07 (#1241)

Co-authored-by: Mirela Prifti <[email protected]>

Author: DadeSko

content/src/content/docs/blog/this-week-in-effect/2025/11/07.mdx

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+---
+pagefind: false
+title: This Week in Effect - 2025-11-07
+excerpt: 5 million npm downloads per week milestone! 🚀 Effect 3.19 release. Vienna Meetup Dec 18. Effect Office Hours 7 & ChEffect coding session.
+date: 2025-11-07
+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 5510+ members!
+
+ 
+## Technology
+
+[Effect 3.19](https://effect.website/blog/releases/effect/319/) has been released!
+  <Tweet id="1985653309353632122" />
+
+More features coming to Schema V4: JSON Schemas sent to AI platforms will be automatically enriched with generated descriptions.
+  <Tweet id="1984201600139943972" />
+
+Here are all the technical changes from the past week (note that changes included in the 3.19 release will not be listed).
+
+### Effect Core
+- [Array.window signature has been improved](https://github.com/Effect-TS/effect/pull/5679) (Feature)
+- [Tie Entity lifetime to layer scope](https://github.com/Effect-TS/effect/pull/5695) (Improvement)
+- [Preserve Layer.mergeAll context order](https://github.com/Effect-TS/effect/pull/5703) (Bug Fix)
+- [Use standard formatting function in Config error messages](https://github.com/Effect-TS/effect/pull/5712) (Bug Fix)
+
+### Effect AI
+- [Fix Response.Part, AllParts, StreamPart not inferring Schema properly if toolkit is WithHandler](https://github.com/Effect-TS/effect/pull/5685) (Bug Fix)
+
+### Effect CLI
+- [Fix log level cli arg infinite loop](https://github.com/Effect-TS/effect/pull/5677) (Bug Fix)
+
+### Effect Cluster
+- [Retry interrupted workflow activities](https://github.com/Effect-TS/effect/pull/5684) (Bug Fix)
+- [Add Sharding shutdown log](https://github.com/Effect-TS/effect/pull/5689) (Feature)
+- [Prevent interrupt suspends from propagating](https://github.com/Effect-TS/effect/pull/5691) (Bug Fix)
+- [Change workflow re-registration defect to a warning](https://github.com/Effect-TS/effect/pull/5693) (Improvement)
+- [Tie Entity lifetime to layer scope](https://github.com/Effect-TS/effect/pull/5695) (Improvement)
+- [Add premptiveShutdown option to ShardingConfig](https://github.com/Effect-TS/effect/pull/5698) (Feature)
+- [Add interruption support to sql-pg](https://github.com/Effect-TS/effect/pull/5701) (Feature)
+- [Preserve Layer.mergeAll context order](https://github.com/Effect-TS/effect/pull/5703) (Bug Fix)
+- [Add timeout to pg query cancellation](https://github.com/Effect-TS/effect/pull/5705) (Bug Fix)
+
+### Effect RPC
+- [Expose disableFatalDefects option in RPC server public API](https://github.com/Effect-TS/effect/pull/5664) (Improvement)
+- [Fix RpcServer.toLayer type](https://github.com/Effect-TS/effect/pull/5682) (Bug Fix)
+
+### Effect SQL
+- [Allow any type to be used as sql parameters](https://github.com/Effect-TS/effect/pull/5686) (Improvement)
+- [Fix handling of multi-statement queries](https://github.com/Effect-TS/effect/pull/5690) (Bug Fix)
+- [Add interruption support to sql-pg](https://github.com/Effect-TS/effect/pull/5701) (Feature)
+- [Add timeout to pg query cancellation](https://github.com/Effect-TS/effect/pull/5705) (Bug Fix)
+
+### Effect Workflow
+- [Retry interrupted workflow activities](https://github.com/Effect-TS/effect/pull/5684) (Bug Fix)
+- [Tie Entity lifetime to layer scope](https://github.com/Effect-TS/effect/pull/5695) (Improvement)
+
+&nbsp;
+
+## Community Highlights
+
+- Yet another community milestone: Effect has surpassed the 5 million npm downloads per week!🚀
+   <Tweet id="1985358703730553262" />
+
+&nbsp;
+
+- Effect is back in Vienna for an [Effect Meetup](https://luma.com/rc84shks) on Thursday, December 18th.
+   <Tweet id="1986418628313370997" />
+
+&nbsp;
+
+- [teej dv](https://x.com/teej_dv/status/1986093430561542392) continues the work on rebuilding Terminal using Effect.
+
+&nbsp;
+
+- [`alchemy-effect`](https://github.com/alchemy-run/alchemy-effect), the Infrastructure-as-Effects (IaE) framework that unifies business logic and infrastructure config into a single, type-safe program, is open on GitHub. 
+
+&nbsp;
+
+- LLMs ❤️ Effect!
+   <Tweet id="1985661993999552693" />
+
+&nbsp;
+
+- Effect mentioned at the [UHC special 20th Builder Talk](https://www.youtube.com/watch?v=xxfSV5fKVD4).
+
+&nbsp;
+
+- Dillon Mulroy livestreamed three new episodes of [**Building a family recipe app with LiveStore, Effect, and CF Workers**](https://www.twitch.tv/videos/2605152345?filter=archives&sort=time).
+
+&nbsp;
+## Effect Content Update
+
+ - The seventh episode of **Effect Office Hours** 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.
+   <Tweet id="1986086153163047120" />
+
+&nbsp;
+
+- Maxwell Brown and Tim Smart were live on X and Twitch with *ChEffect*.
+   <Tweet id="1986190092554412288" />
+
+&nbsp;
+
+- **ChEffect - Part 7: A Local-First App built w/ Effect & LiveStore** and **🔥 Office Hours 6: Effect Context & Layers + Confect Library (Effect + Convex integration)** are now on our YouTube Channel.
+  
+<YouTube
+  id="https://www.youtube.com/embed/qC-S6M8q-HQ?si=k-lDfgsbWDVqdD3r"
+  title="ChEffect - Part 7: A Local-First App built w/ Effect & LiveStore"
+/>
+
+&nbsp;
+
+<YouTube
+  id="https://www.youtube.com/embed/7SLVmatKRU0?si=crJ98YZM84O9rwID"
+  title="🔥 Office Hours 6: Effect Context & Layers + Confect Library (Effect + Convex integration)"
+/>
+
+
+&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/1967543931031126523), and audio platforms like [Spotify](https://open.spotify.com/episode/5vhRg2zUt7UxP7ABof8XQ0) and [Apple Podcast](https://podcasts.apple.com/us/podcast/event-driven-systems-in-fintech-how-spiko-leverages/id1781879869?i=1000726884416).
+
+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.
+
+We've published our fifth episode with Samuel Briole, CTO of [Spiko](https://www.spiko.io/), a Paris-based FinTech startup building infrastructure for issuing regulated financial products on public blockchains, specifically risk-free products. 
+
+Spiko utilizes Effect extensively from day one, for both backend and frontend development, particularly for managing asynchronous operations, API integrations, and smart contracts.
+
+<YouTube
+  id="https://www.youtube.com/embed/lFOHVZnJLew?si=LjNt7r29zM0j8T1s"
+  title="Event-Driven Systems in FinTech: How Spiko Leverages Effect | Samuel Briole | Cause & Effect #5"
+/>
+
+&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:
+
+- **Expand.ai**: [Founding Engineer](https://www.expand.ai/careers/founding-engineer)
+
+- **Platonic Systems**: [Remote Effect Engineers](https://twitter.com/platonicsystems/status/1861470819861311945)
+
+- **Inato**: [Product Engineers / Fullstack Engineers](https://jobs.lever.co/inato/6df2d1e3-ce0a-487b-a930-840759803d44)
+
+- **Medbill.ai**: [Founding Software Engineers (full-stack and backend)](https://www.linkedin.com/posts/codingtom_medbill-ai-activity-7260092522708762624-N7TH)
+
+- **Oneiro Solutions**: Software Engineer - Core Team. [Join Effect Discord](https://discord.com/channels/795981131316985866/796153351372275743) and DM *leighman* for further info.
+
+- **Microsub**: [TS Developer](https://x.com/0xdownshift/status/1880013835878154510)
+
+- **Samsung Food**: [Full Stack Developer](https://whisk.bamboohr.com/careers/110)
+
+- **Margins**: [Product Engineer](https://margins.app/jobs/product-engineer)
+
+- **[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).
+
+- **Vitalize Care** is hiring a full-stack engineer with Effect experience: [Full-Stack Engineer](https://jobs.ashbyhq.com/vitalize/d907ba5f-0f2f-4bb4-931a-1680d6daf81a)
+
+- **Embedded Insurance** is hiring for a [Senior Software Engineering](https://embeddedinsurance.bamboohr.com/careers/23) position.
+
+- **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).
+
+- **Software Intelligence Works**: [Senior Full-Stack Engineer](https://remotive.com/remote-jobs/software-dev/senior-full-stack-engineer-2011648)
+
+- **14.ai**: [Founding engineer](https://14.ai/careers)
+
+- **Wander** is hiring [Software Developers](https://ship.wander.com) with experience in Effect.
+
+- **Glide**: [Senior Frontend Product Engineer](https://www.glideapps.com/jobs/frontend-product-engineer)
+
+- **Supermemory**: [Founding Backend / Infrastructure Engineer](https://x.com/i/jobs/1928194391946186862)
+
+- **Ressio**: [Senior full stack Engineer](https://crocus-hardhat-6f7.notion.site/Senior-full-stack-engineer-back-end-leaning-28ce06d15219800eb2bcca558d9f0446)
+
+- **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).
+
+- **A 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.
+
+- **Freckle.io** is hiring [Platform Engineers](https://x.com/code_typist/status/1930326662677434561) with experience in Effect.
+
+- **A 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.
+
+- Job opening for [Japanese-speaking developers](https://note.com/luma/n/n679d4dcdb363)
+
+- **VST**: [Senior Full Stack Software Engineer](https://www.linkedin.com/jobs/view/3854111540/)
+
+- **Globe Commerce**: [Founding Product Engineer](https://www.linkedin.com/jobs/view/4264203054)
+
+- **Introw**: [Staff Software Engineer](https://join.com/companies/introw/14395111-staff-software-engineer)
+
+- **Gale**: [SWE Intern - Remote (CAN/US)](https://forms.galevisa.com/r/m6gr7e)
+
+- **Heartbeat**: [Senior Software Engineer](https://jobs.heartbeat.chat/35182) 
+
+- **Superwall**: [Full-stack Mobile Developer](https://x.com/jakemor/status/1972770955500876070)
+
+- **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).
+
+- **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).
+
+- **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.
+
+- **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.
+
+- **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).
+
+- **Warp** is hiring a [Product Engineer](https://www.joinwarp.com/careers/roles?ashby_jid=655962db-5fbe-40cc-a072-9522295b3cbc)
+
+- **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).
+
+_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_