Primitives for building end-to-end applications in TypeScript. Creators of @EffectTS_
Internet
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- Followers 1,045
- Likes 445
Effectful Technologies retweeted
Effect v4 is here.
One ecosystem. Zero dependencies.
The next chapter of Effect and the foundation for building reliable software and AI agents in TypeScript.
ALT Effect 4.0 stable release announcement on a dark background. Large white “4.0” above “Production-ready. Out now.” A timeline along the bottom progresses from 3.0 Stable to 4.0 RC to 4.0 Stable.
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Effectful Technologies retweeted
The Effect community is meeting on both US coasts this September:
🗽 NYC - Sep 24, 6:30 PM
luma.com/2e0qaazh
🌉 SF - Sep 30, 5:30 PM
luma.com/all-things-effect
Come spend an evening talking all things Effect!
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Effectful Technologies retweeted
Effect Days is back 🇮🇹
Join us on December 9–11 for three days with the people building Effect and the people building with it.
Workshops. Talks. Community.
Early Bird tickets are now live ↓
effect.website/effect-days
ALT Effect Days 2026 banner eaturing a large group photo of the Effect community.
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Effectful Technologies retweeted
Effect v4 Release Candidate is here!
After months of beta releases, real-world usage, and community feedback, v4 is entering the final stretch before stable.
Try it, migrate, test your integrations, and tell us what still breaks before 4.0.
↓↓↓
effect.website/blog/releases…
ALT Effect v4 Release Candidate banner. A horizontal timeline shows 3.0 stable on the left, 4.0 RC in the center marked “we are here,” and 4.0 stable on the right.
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Effectful Technologies retweeted
Enjoy a special Cause & Effect episode with @jdegoes, creator of @zioscala, and grandfather of Effect.
@schickling @MichaelArnaldi
00:00 Intro, From ZIO to Effect
06:54 Software engineering in the age of AI
12:34 More developers, but a wider skill gap
23:03 What is still worth learning?
29:40 Closing the loop around coding agents
39:10 Preventing engineering skills from atrophying
47:20 Effect through the eyes of ZIO’s creator
52:42 Why Effect’s primitives matter more with AI
58:05 Teaching coding agents to write good Effect code
1:01:25 Rethinking tests, DRY, and boilerplate
1:08:45 The Effect Companion
1:18:16 A role-playing game for learning Effect
1:25:05 Turning knowledge into a product
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Effectful Technologies retweeted
Tomorrow: full Cause & Effect episode with @jdegoes 🔥
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Effectful Technologies retweeted
Scala developers could be missing out on these #TypeScript features 👀
What's yours? 🤔 @jdegoes shares his!
Great question from our livestream with @MichaelArnaldi from @EffectfulTech 🙏
Get access to the upcoming @EffectTS_ Training: eventbrite.com/e/ziverge-eff…
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Effectful Technologies retweeted
Effect is one of the most critical pieces of technology for building with agents at this point. -- @davis7
From errors as values to services, testing, and dependency injection, Ben Davis explains why Effect v4 feels built for the AI era.
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Effectful Technologies retweeted
This Week in Effect ︀︀ #129
@zivergetech becomes the first Effect Adoption Partner & launches an Effect Training Workshop by @jdegoes
Why Effect v4 is built for AI-assisted coding - by @davis7
@theo's first PR in Effect
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effect.website/blog/this-wee…
ALT A post by Christoph Nakazawa asking, “How do you know if someone is using Effect?” The post includes a selfie of him outdoors wearing the Effect.succeed black hat. Below, Sebastian Lorenz replies, “They can touch grass with peace of mind?”
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Effectful Technologies retweeted
We're going live TOMORROW 🚨
Why #TypeScript is a Good Fit for Unemployed #Scala Developers 🤔
🎙️ @MichaelArnaldi from @EffectTS_ and @EffectfulTech
🎙️ @jdegoes from @Ziverge
Friday, July 31st at 10am ET / 4pm CET on X, LinkedIn, and YouTube.
Follow to be notified 👀
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Effectful Technologies retweeted
We're already counting the days for our upcoming @EffectTS_ Workshop 👀
Seats are filling up fast, so make sure to book yours here:
eventbrite.com/e/19936217412…
The Effect TS Workshop gives you access to:
✅️ A minibook covering Effect TS v4
✅️ The official instructor's notebook, which teaches you the fundamentals
✅️ A (very fun) role-playing game, set in Effectville
✅️ A library of battle-tested skills
Let's return from summer with a bang. See you on September 10!
@EffectfulTech
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Effectful Technologies retweeted
Here are 3 things we're thrilled to announce, as part of our partnership with @EffectfulTech, creators of @EffectTS_ 🔥
➡️ Ziverge will be sponsoring Effect Days
➡️ We have produced an Effect SDK for @GolemCloud
➡️ We've launched an @EffectTS_ Training Workshop
Sign up for the Effect TS Training Workshop here:
eventbrite.com/e/19936217412…
Make sure you're following for more exciting things to come 👀
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Effectful Technologies retweeted
Our team is thrilled to announce that we're partnering with @EffectfulTech, creators of @EffectTS_ 🚀
Today, Ziverge becomes Effect's first Global Premier Partner.
An Effect workshop built and endorsed by the team that created the framework, open-source contributions back to the Effect ecosystem, starting with the Golem SDK for Effect, and a commercial services layer for enterprise teams: implementation, team extension, and support 👀
Read more about our partnership:
ziverge.com/blog/effect-has-…
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Get help adopting Effect with @zivergetech
Hands-on support and training for teams building with Effect and shipping to production.
Our team is thrilled to announce that we're partnering with @EffectfulTech, creators of @EffectTS_ 🚀
Today, Ziverge becomes Effect's first Global Premier Partner.
An Effect workshop built and endorsed by the team that created the framework, open-source contributions back to the Effect ecosystem, starting with the Golem SDK for Effect, and a commercial services layer for enterprise teams: implementation, team extension, and support 👀
Read more about our partnership:
ziverge.com/blog/effect-has-…
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Effectful Technologies retweeted
We shipped a brand-new Effect website.
Take it for a spin, click everything, and let us know what you think.
Bugs, feedback, confusing bits, we want all of it ↓
effect.website
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Effectful Technologies retweeted
An Effect-First Frontend Framework: @foldkit
@devinjameson joined @schickling on Cause & Effect to talk about Foldkit’s schema-first approach to frontend state, how it differs from React, and why this architecture matters even more in the age of AI-assisted coding.
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Effectful Technologies retweeted
This Week in Effect:
X Live Studio is live and fully written in Effect, by @ZachWarunek 🖤
Birdclaw by @steipete, built with Effect. 🤍
Effect Utrecht 🇳🇱 is officially on the calendar.
More below:
effect.website/blog/this-wee…
ALT Screenshot of a post by Zach Warunek from X saying, “I love that I finally got to ship something to prod that’s fully written in @EffectTS_.” The post quotes his earlier announcement introducing Live Studio, with a video preview of the interface.
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Effectful Technologies retweeted
Effectifying @opencode with @kitlangton & @schickling
Enjoy a very Kit Cause & Effect episode, technical, funny, opinionated, and full of love for effect systems.
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Effectful Technologies retweeted
Effect systems are f***ing perfect.
Promises are hot garbage.
Tomorrow: Cause & Effect episode with @kitlangton 🔥
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Effectful Technologies retweeted
Effect at Datapizza: Services & Layers in Production
Leonardo Trapani @leo_trapani | Effect Milan 2026 🇮🇹
piped.video/watch?v=mQWsm7AV…
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