Rabbit hole explorer. Working on JS & WebAssembly at Cloudflare. TC39. Creator https://jspm.org.https://bsky.app/profile/guybedford.comhttps://bsky.app/profile/guybedford.com/post/3mk3usldtkc2hWe recently undertook an effort to improve the 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! https://blog.cloudflare.com/making-rust-workers-reliable/22 Apr 2026 16:04 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3mk3usldtkc2hhttps://bsky.app/profile/guybedford.com/post/3lt2wef2ay224Fascinating writeup by @hoodmane.bsky.social of Pyodide's WebAssembly JS promise integration, including a description and fix for the linear memory stack reentrancy problem. https://blog.pyodide.org/posts/jspi-with-c-runtime/03 Jul 2025 14:20 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3lt2wef2ay224https://bsky.app/profile/guybedford.com/post/3loyrt5mjzk22First update on the open source I've been working on this past month: ES Module Shims 2.5 - featuring hot reloading for native modules. https://guybedford.com/hot-reloading-es-module-shims-2.512 May 2025 20:13 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3loyrt5mjzk22https://bsky.app/profile/guybedford.com/post/3loyrt5mjzk22First update on the open source I've been working on this past month: ES Module Shims 2.5 - featuring hot reloading for native modules. https://guybedford.com/hot-reloading-es-module-shims-2.512 May 2025 20:13 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3loyrt5mjzk22https://bsky.app/profile/guybedford.com/post/3lnilu6lyzs2lInteresting experiment - Google’s experimenting with performance exceptions in the origin-segmented script cache, seemingly primarily for their own advertising, YouTube and Google Maps scripts. https://bsky.app/profile/intenttoship.dev/post/3lnihkhozeu2c [contains quote post or other embedded content]23 Apr 2025 16:18 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3lnilu6lyzs2lhttps://bsky.app/profile/guybedford.com/post/3lngci7qq622sExcited to announce I'll be joining Cloudflare next month as a Systems Engineer on the Workers Runtime team, continuing to work on the platform-level intersection of JavaScript and WebAssembly. And in the mean time, I will be taking a much needed break and dusting off some OSS work...22 Apr 2025 18:25 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3lngci7qq622shttps://bsky.app/profile/guybedford.com/post/3lhrvst6bhc23It blows my mind when JS packages publish for every commit and end up with thousands of versions on npm. For example Primer React (https://www.npmjs.com/package/@primer/react) publishes ~20 - 30 times a day via commit-based CI. Good dev pattern, or misuse of npm?10 Feb 2025 00:39 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3lhrvst6bhc23https://bsky.app/profile/guybedford.com/post/3lgpi3iydwc2xAnnouncing ES Module Shims 2.0. The latest version of what started out as an import maps polyfill now supports production polyfilling of more than 8 existing and upcoming native browser modules features 🧵27 Jan 2025 08:03 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3lgpi3iydwc2xhttps://bsky.app/profile/guybedford.com/post/3lgpi3iydwc2xAnnouncing ES Module Shims 2.0. The latest version of what started out as an import maps polyfill now supports production polyfilling of more than 8 existing and upcoming native browser modules features 🧵27 Jan 2025 08:03 +0000at://did:plc:4dpapt2z2ozszunechxeeqce/app.bsky.feed.post/3lgpi3iydwc2x