Maxwell Brown retweeted
open source contribution ✨
CAFE stack got insanely better! You can now deploy Foldkit (@foldkit) apps as SPA, SSG, SSR or hybrid with Alchemy (@alchemy_run) on every website provider it supports.
CAFE stack got insanely better! You can now deploy Foldkit (@foldkit) apps as SPA, SSG, SSR or hybrid with Alchemy (@alchemy_run) on every website provider it supports.
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Maxwell Brown retweeted
This Week in Effect #141
→ Cluster idempotency in Module of the Week by @maxwellbrown
→ Native McpClient + major EventLog improvements in v4
→ Effect Miami’s 🌴 full speaker lineup announced: @jdegoes @harrysolovay @devinjameson
Blog post in reply ↓
→ Cluster idempotency in Module of the Week by @maxwellbrown
→ Native McpClient + major EventLog improvements in v4
→ Effect Miami’s 🌴 full speaker lineup announced: @jdegoes @harrysolovay @devinjameson
Blog post in reply ↓
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Maxwell Brown retweeted
We bet on Effect early on and its been one of our best infrastructure decisions as Warp has scaled
Therefore, approving our sponsorship was one of my easiest finance decisions yet!
Catch @rankintweets our CTO headlining Effect Days in December
Therefore, approving our sponsorship was one of my easiest finance decisions yet!
Catch @rankintweets our CTO headlining Effect Days in December
Huge thanks to all our sponsors for helping us bring the Effect community together in Italy this December. 🤍
We're so happy to have you on board!
@zivergetech @EffectfulTech @warpdotco @executorsh @academind_real @Cloudflare @novelcrafter
effect.website/effect-days#sp…
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Maxwell Brown retweeted
Last weekend I moved Maple off React and onto @foldkit
100+ pages, 300k+ lines of React. Took me a few hours planning and building a validation harness, then 3 days with Claude to run the rewrite. The result is a 1:1 clone down to every. interaction and animation, with renders It's been in production for a week and nobody noticed the switch
If you spend the time on a good validation harness, you can rewrite almost anything now
Wrote a bit more about why here: maple.dev/blog/react-to-…
100+ pages, 300k+ lines of React. Took me a few hours planning and building a validation harness, then 3 days with Claude to run the rewrite. The result is a 1:1 clone down to every. interaction and animation, with renders It's been in production for a week and nobody noticed the switch
If you spend the time on a good validation harness, you can rewrite almost anything now
Wrote a bit more about why here: maple.dev/blog/react-to-…
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Maxwell Brown retweeted
i was wrong about effect
when @schickling bent my ear for an hour at next conf (rip) 2 years ago i told him it would never happen
impossible nobody has time for all that because
@EffectTS_ is a lifestyle choice,
developers resist change,
it's too much surface area and vocabulary
all true, for humans, but the calculus totally changes with agents and effect's extremely robust nature isn't cognitive load for my smooth ass brain
now being all in, accepting the lifestyle choice, and building modular bullet proof apps can be your default
love this for us
when @schickling bent my ear for an hour at next conf (rip) 2 years ago i told him it would never happen
impossible nobody has time for all that because
@EffectTS_ is a lifestyle choice,
developers resist change,
it's too much surface area and vocabulary
all true, for humans, but the calculus totally changes with agents and effect's extremely robust nature isn't cognitive load for my smooth ass brain
now being all in, accepting the lifestyle choice, and building modular bullet proof apps can be your default
love this for us
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Maxwell Brown retweeted
Effect is one of the best things that has happened to our tech stack at Warp. Sponsoring this was the easiest decision ever
Huge thanks to all our sponsors for helping us bring the Effect community together in Italy this December. 🤍
We're so happy to have you on board!
@zivergetech @EffectfulTech @warpdotco @executorsh @academind_real @Cloudflare @novelcrafter
effect.website/effect-days#sp…
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We are EXCEPTIONALLY grateful to all the sponsors of Effect Days!
Look forward to nerding out with you all in Italy!
Look forward to nerding out with you all in Italy!
Huge thanks to all our sponsors for helping us bring the Effect community together in Italy this December. 🤍
We're so happy to have you on board!
@zivergetech @EffectfulTech @warpdotco @executorsh @academind_real @Cloudflare @novelcrafter
effect.website/effect-days#sp…
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Maxwell Brown retweeted
Huge thanks to all our sponsors for helping us bring the Effect community together in Italy this December. 🤍
We're so happy to have you on board!
@zivergetech @EffectfulTech @warpdotco @executorsh @academind_real @Cloudflare @novelcrafter
effect.website/effect-days#sp…
We're so happy to have you on board!
@zivergetech @EffectfulTech @warpdotco @executorsh @academind_real @Cloudflare @novelcrafter
effect.website/effect-days#sp…
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Maxwell Brown retweeted
Another @foldkit Blocks + Effect Layers preview is ready.
This round:
- Added a Block assembly boundary to reduce expensive TypeScript inference.
- More consistent API naming and better diagnostics.
- Updated guides for stable migrations and previous-preview upgrades.
- Optional tsrs editor setup, which has felt much snappier in Neovim. Useful if you still type code.
- More under the hood.
Thank you to everyone who contributed experiments, patches, and feedback. Your work helped shape this release.
Testing instructions and copyable agent prompts:
github.com/foldkit/foldki…
This round:
- Added a Block assembly boundary to reduce expensive TypeScript inference.
- More consistent API naming and better diagnostics.
- Updated guides for stable migrations and previous-preview upgrades.
- Optional tsrs editor setup, which has felt much snappier in Neovim. Useful if you still type code.
- More under the hood.
Thank you to everyone who contributed experiments, patches, and feedback. Your work helped shape this release.
Testing instructions and copyable agent prompts:
github.com/foldkit/foldki…
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Maxwell Brown retweeted
Alright. @npmjs is officialy dead (to me). Actually scratch that. It's just dead. Period. Time to put our tokens where our mouth is and replace it with something better. It's long overdue.
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Maxwell Brown retweeted
🚀 Excited to welcome 𝗗𝗲𝘃𝗶𝗻 𝗝𝗮𝗺𝗲𝘀𝗼𝗻 (@devinjameson) to 𝗘𝗳𝗳𝗲𝗰𝘁 𝗠𝗶𝗮𝗺𝗶 #𝟯!
Devin is the creator of @foldkit, an ambitious open-source frontend framework built on Effect and inspired by The Elm Architecture.
Foldkit rethinks frontend development around able transitions, and composable effects. What makes it especially exciting is its approach to AI-native development: DevTools and MCP integration that let agents inspect application state, trace events, and even rewind the UI.
With a background spanning product design and engineering, Devin brings a fascinating perspective on how we can build better software for both humans and AI agents.
It’s a real pleasure to welcome him to our Miami developer community!
🔗 foldkit.dev
📅 November 9, 2026
📍 The LAB Miami, Wynwood
🎟️ RSVP: luma.com/0yaas5h2
#EffectMiami #EffectTS #TypeScript #AI #Foldkit #FunctionalProgramming
Devin is the creator of @foldkit, an ambitious open-source frontend framework built on Effect and inspired by The Elm Architecture.
Foldkit rethinks frontend development around able transitions, and composable effects. What makes it especially exciting is its approach to AI-native development: DevTools and MCP integration that let agents inspect application state, trace events, and even rewind the UI.
With a background spanning product design and engineering, Devin brings a fascinating perspective on how we can build better software for both humans and AI agents.
It’s a real pleasure to welcome him to our Miami developer community!
🔗 foldkit.dev
📅 November 9, 2026
📍 The LAB Miami, Wynwood
🎟️ RSVP: luma.com/0yaas5h2
#EffectMiami #EffectTS #TypeScript #AI #Foldkit #FunctionalProgramming
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I still don't know what the proper way to pronounce "idempotent" is
At-least-once delivery means you never lose a message, but you'll sometimes get the same one twice.
This week learn how to:
→ Make handlers idempotent
→ Skip duplicate messages
→ Deal with the dual write problem
Module of the Week: Cluster, Part 4 ↓
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Maxwell Brown retweeted
building.owner.com/tsrs and checkout our blogpost on the port!
Introducing tsrs: a Rust port of the TypeScript compiler 🦀
We are not forking TypeScript!
◆ In close collaborating with the TypeScript team
◆ Up to 8x faster than TS 7.0 & ~70% less memory
◆ Runs in WASM, so it works in your browser & on Workers
◆ Soon part of the Oxc toolchain
npx tsrs
blog.cloudflare.com/typescript-rus…
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Maxwell Brown retweeted
Should we increase the 100 ticket limit for next year?
Effect Days 2026 is almost sold out! 👀
Effect Days 2026 is almost sold out! 👀
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
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Maxwell Brown retweeted
If you read about something being magically durable they are lying to you, especially if it’s a coding agent story. Durability there requires careful design and sometimes restricting capabilities
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Maxwell Brown retweeted
The latest @foldkit Blocks + Effect Layers preview is ready. I’ll keep refining it as feedback comes in.
What’s new:
- Simpler root setup: compose your application from Blocks, then pass the root ApplicationBlock to Program.make.
- Cleaner child OutMessage policies with better inference.
- Better support for optional children with keyed identities.
- Separate guides for migrating from stable and upgrading an earlier preview.
Installation instructions and copyable migration prompts are in the PR description.
github.com/foldkit/foldki…
What’s new:
- Simpler root setup: compose your application from Blocks, then pass the root ApplicationBlock to Program.make.
- Cleaner child OutMessage policies with better inference.
- Better support for optional children with keyed identities.
- Separate guides for migrating from stable and upgrading an earlier preview.
Installation instructions and copyable migration prompts are in the PR description.
github.com/foldkit/foldki…
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Maxwell Brown retweeted
The Effect team is taking the stage this week in SF 🇺🇸 and London 🇬🇧
@maxwellbrown is speaking at @Cloudflare Connect & @MattiaManzati at @ReactAdvanced! Go say hi if you're attending either conf!
@maxwellbrown is speaking at @Cloudflare Connect & @MattiaManzati at @ReactAdvanced! Go say hi if you're attending either conf!
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