If you have Claude Code installed you're running software that uses the new (unreleased) version of Bun that's been rewritten in Rust - here are two commands you can run to see that for yourself
this was my only ever contribution to bun
@simonw you should be able to do `BUN_BE_BUN=1` to tread any bundled executable as a bun runtime, so `BUN_BE_BUN=1 claude --version` would show 1.4.0 in theroy
Positive users called Claude Code's stealth shipping of an unreleased Rust rewrite of Bun clever and practical, while negative users saw it as a hypocritical reversal of Bun's Zig identity.
Based on 10 visible X reactions from 20 accounts; directional sample.
Ask a question below.
Published answers will appear here.
@simonw Simon's blog is one of the few places I check for LLM implementation details that actually survive a production environment. Saves me hours of testing.
@simonw Running a secret Rust rewrite of Bun just so Claude Code can generate more legacy JS is peak modern infrastructure.
@simonw That’s a pretty clever way to ship a major rewrite without most users even realizing they’re already using it.
@thdxr thats a solid contribution tbh one flag that changes everything is elegant
@thdxr One contribution and it's now running in every Claude Code install. Not bad.
@thdxr Why the heck do you get so many bots up in your comments lmao
If you have Claude Code installed you're running software that uses the new (unreleased) version of Bun that's been rewritten in Rust - here are two commands you can run to see that for yourself
this was my only ever contribution to bun
Positive users called Claude Code's stealth shipping of an unreleased Rust rewrite of Bun clever and practical, while negative users saw it as a hypocritical reversal of Bun's Zig identity.
Based on 10 visible X reactions from 20 accounts; directional sample.
Ask a question below.
Published answers will appear here.
