@guybedford

Software developer at Cloudflare. @Nodejs core. @TC39 delegate. @JSPM.

guybedford.com
Joined February 2009
  • Tweets2.2K
  • Following702
  • Followers4.3K
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Guy Bedford retweeted
Sam Saccone
@samcconeOct 11
Your AI coding agent isn't slowed down by inference time alone, but by harness assumptions that treat process exit as the prerequisite for tool output consumption In samsaccone.com/posts/harness… I explore Time to Awareness (TTA) and a path forward to unblock harnesses running human-centric CLIs to accelerate the agent iteration loop.
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Guy Bedford retweeted
Clay Smith
@smithclaySep 29
so @duckdb 2.0 compiled to wasm works well in @Cloudflare workers with emscripten support that launched today, some cool stuff possible.
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This is black magic AFAICT
In testing we’ve been able to see significantly improved library compatibility for Rust Workers. To illustrate the sort of capabilities supported, we were able to get a Rust-native Minecraft server (Pumpkin) running inside of a Durable Object with TCP ingress, using real TCP sockets via Tokio. See the end of this post for a full description of this port.

ALT In testing we’ve been able to see significantly improved library compatibility for Rust Workers. To illustrate the sort of capabilities supported, we were able to get a Rust-native Minecraft server (Pumpkin) running inside of a Durable Object with TCP ingress, using real TCP sockets via Tokio. See the end of this post for a full description of this port.

Brendan Irvine-Broque
@irvinebroqueSep 28
we've been upstreaming changes to make wasm-bindgen able to target wasm32-unknown-emscripten and contributing back to Tokio, so that it just works on Workers and in Node.js WASI = YAGNI proper support for JavaScript runtimes was the real missing piece of the puzzle... blog.cloudflare.com/rust-wor…

Supporting native Rust in Workers with the new Emscripten target for wasm-bindgen

With the new experimental support for the Emscripten target in Rust Workers, many previously unsupported Rust libraries and applications can now be built and deployed directly to Cloudflare’s global...

blog.cloudflare.com
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How we got a Minecraft server running with WebAssembly on a single-threaded Durable Object with Cloudflare Workers. This involved a lot of work to fully support Tokio on Cloudflare Workers with the Emscripten target to allow full support for Rust native applications. blog.cloudflare.com/rust-wor…

Supporting native Rust in Workers with the new Emscripten target for wasm-bindgen

With the new experimental support for the Emscripten target in Rust Workers, many previously unsupported Rust libraries and applications can now be built and deployed directly to Cloudflare’s global...

blog.cloudflare.com
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Guy Bedford retweeted
zeb
@zebassemblySep 28
Lots of great birthday week announcements, but this is probably my favorite. I have a huge soft spot for Rust and for WebAssembly and it’s been fantastic to see my peers push Rust in Workers further than I ever did. Also, using the internal demos meeting to play Minecraft hosted on Workers is probably one of my favorite demos. blog.cloudflare.com/rust-wor…

Supporting native Rust in Workers with the new Emscripten target for wasm-bindgen

With the new experimental support for the Emscripten target in Rust Workers, many previously unsupported Rust libraries and applications can now be built and deployed directly to Cloudflare’s global...

blog.cloudflare.com
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Guy Bedford retweeted
Cloudflare
@CloudflareApr 22
Panics in Rust Workers were historically fatal, poisoning the entire instance. By collaborating upstream on the wasm‑bindgen project, Rust Workers now support resilient critical error recovery, including panic unwinding using WebAssembly Exception Handling. cfl.re/4cFnjJR

Making Rust Workers reliable: panic and abort recovery in wasm‑bindgen

Panics in Rust Workers were historically fatal, poisoning the entire instance. By collaborating upstream on the wasm‑bindgen project, Rust Workers now support resilient critical error recovery,...

blog.cloudflare.com
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We recently undertook an effort to improve reliability of Rust Workers, which involved implementing panic=unwind and abort recovery in wasm-bindgen using WebAssembly Exception Handling. Excited to be able to share this work! blog.cloudflare.com/making-r…

Making Rust Workers reliable: panic and abort recovery in wasm‑bindgen

Panics in Rust Workers were historically fatal, poisoning the entire instance. By collaborating upstream on the wasm‑bindgen project, Rust Workers now support resilient critical error recovery,...

blog.cloudflare.com
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node:fs now works on Cloudflare Workers
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you asked, we delivered :-) blog.cloudflare.com/nodejs-w…

A year of improving Node.js compatibility in Cloudflare Workers

Over the year we have greatly expanded Node.js compatibility. There are hundreds of new Node.js APIs now available that make it easier to run existing Node.js code on our platform. This has been a...

blog.cloudflare.com
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Guy Bedford retweeted
MoonBit
@moonbitlang9 Sep 2025
What if Python had static type safety & near-native performance?😉 That’s what python.mbt brings in the latest MoonBit Pearls article. A deep dive on Python + MoonBit integration 👉 moonbitlang.com/pearls/moonb…

A Guide to MoonBit Python Integration | MoonBit

A Guide to MoonBit Python Integration

moonbitlang.com
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Say hello to my very old friend @UseExpressJS running on @CloudflareDev workers!
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Guy Bedford retweeted
Node.js
@nodejs1 Aug 2025
Node.js 24.5.0 is out, featuring: - Built-in proxy support for `node:http(s)` - Experimental WASM modules - Upgraded OpenSSL version 💚💚💚 All the details here: nodejs.org/en/blog/release/v…

Node.js — Node.js 24.5.0 (Current)

Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.

nodejs.org
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I'm working to improve the compression rate of the @swc_rs minifier! Current status: Total (gzipped) swc: 12.61MB terser: 12.66MB Size ratio: 99.56% swc produced smaller or equal output for 2128 files out of 2212 files, 96.20% Details at github.com/swc-project/swc/i…

Improve SWC minifier compression rate · Issue #10858 · swc-project/swc

I did cls && dbg-swc es minifier ensure-size ~/projects/swc-minifier-inputs and I got the list of files where SWC minifier has a worse compression rate compared to terser. I'll investig...

github.com
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Guy Bedford retweeted
Steven ⬢
@styfle4 Jul 2025
Freedom github.com/styfle/proposal-i…
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Guy Bedford retweeted
MoonBit
@moonbitlang18 Jun 2025
🚀MoonBit Beta is here! After 2 years of fast iteration, MoonBit enters its stable phase with regard to language syntax！ ✨Built-in async 🛠 Fast tooling and IDE-aware error handling moonbitlang.com/blog/beta-re…

Announcing MoonBit Beta | MoonBit

Announcing MoonBit Beta

moonbitlang.com
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Microsoft got npm for a steal, and they're barely even running it properly. The npm changes feed API has been completely broken for ~2 months. It's impossible to build apps that sync to the npm registry right now. Really shitty stewardship.
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more replies
Revision numbers don't match, sequence numbers are out of order, and right now I'm finding it impossible to sync to the feed without ending up in a "sequence number cycle". They broke the meaning of revisions and sequence numbers from the couch interpretation.
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Not to mention the API being non backwards compatible. See how many issues folks are brining up in github.com/orgs/community/di… without any recourse. Just simply at the receiving end of broken APIs.

`npm replication API` changes and migration guide · community · Discussion #152515

Overview As part of our ongoing improvements, we are making changes to our replication API services. This is to ensure availability and performance of our feeds. Moving forward, only a limited set ...

github.com
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