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Claude Code uses Bun written in Rust now

simonwillison.net

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Re: Claude Code uses Bun written in Rust now

#91

Post by re-thc »

atonse wrote: post #18
junon wrote: post #5

Earlier quoted context omitted.

Why does changing to Rust kill the project? I don't understand the point here.

It’s made absolutely no negative difference, as we’ve seen in the real world in the last 60 days since the merge. I feel weird having to defend reality; reality being that it was merged nearly 2 months ago and tons of people have had their pitchforks out without a shred of actual evidence that this made bun worse in any measurable way. But they still insist it was a mistake. I’ve never met Jared or the bun team but I…

> that this made bun worse in any measurable way

Issues on GitHub was mass closed claiming zig is no longer relevant without fixing the real issues.

Re: Claude Code uses Bun written in Rust now

#92

Post by [deleted] »

baq wrote: post #55
gabrieledarrigo wrote: post #14

Bah. Personally my take on the entire affair is quite negative, whatever Jarred or Simonw says about it. I think Bun owned by Anthropic and the entire rewrite with AI is not the real point (even if it's quite interesting, though). My take is that Jarred, and Bun,didn't demonstrate a serious, adult approach, from "this is my branch, you are overreacting" message to just proceeding with a 1mil+ PR merged in less than m…

I guess the point is none of it matters, CC users didn't notice or don't care except an exceptionally small minority.

[deleted]

Re: Claude Code uses Bun written in Rust now

#93

Post by Matl »

stymaar wrote: post #40
junon wrote: post #5

Earlier quoted context omitted.

Why does changing to Rust kill the project? I don't understand the point here.

Rust as a language is irrelevant to this discussion, the problem is that bun was vibe coded by a single dude without any open source community involvement. “bun the open source project” is basically dead at that point: don't expect any of the zig enthusiasts who had their code being forcibly rewritten in a language they don't like to follow Jared. “bun the JavaScript runtime ” is not dead though.

I agree, it's unfortunate the headlines seem to have become 'rewritten in Rust' (not a bad thing) and not 'vibecoded in a week without review' (a bad thing).

Re: Claude Code uses Bun written in Rust now

#94

Post by ranguna »

embedding-shape wrote: post #2

> For me this outputs Bun v1.4.0 (macOS arm64). The most recent release of Bun on GitHub is currently v1.3.14 from May 12th, so that v1.4.0 version number in Claude supports them shipping a preview of a not-yet-released Bun version. And so, the FOSS project "Bun" silently dies in darkness and is now something completely else. I'm glad I still had "Investigate if Bun is worth it" on my TODO list and hadn't yet gotten…

The PR is public, you can build and use it as well. The anthropic team just decided to use it, and you can as well.

Re: Claude Code uses Bun written in Rust now

#95

Post by firesteelrain »

afavour wrote: post #84
firesteelrain wrote: post #61

Earlier quoted context omitted.

> The objection isn’t to the language. It’s to Claude using a version of Bun that is not available to us. I was responding to your GP comment. For weeks, it was uproar over the blanket AI move to Rust and now it’s this reason. That’s why I said the goalposts are being moved.

That seems illogical to me. We’re only allowed to have one objection to a project and once that’s used up we can’t air another? FWIW I don’t think people have forgotten the original objection either!

You can; it feels contrived and very social justice warrior/anti Anthropic (which on HN is in of itself almost a meme now). The main reason was because of the blanket AI move which I could understand.

Re: Claude Code uses Bun written in Rust now

#96

Post by afavour »

kstenerud wrote: post #57
afavour wrote: post #16

Earlier quoted context omitted.

The objection isn’t to the language. It’s to Claude using a version of Bun that is not available to us. We don’t know what’s actually in it.

Why is that even a thing to object to? You're talking as if you placed stock in the bizarre idea that Anthropic would close source the project and start charging for it. Stay your pitchforks.

I wouldn’t use language as strong as OPs but it is against the spirit of FOSS for a corporate owner to use a private prerelease version of their open source software.

I think it’s valid to object to. If 1.4 is good enough to be used by Claude, why not us?

Re: Claude Code uses Bun written in Rust now

#97

Post by [deleted] »

conartist6 wrote: post #76
gabrieledarrigo wrote: post #14

Bah. Personally my take on the entire affair is quite negative, whatever Jarred or Simonw says about it. I think Bun owned by Anthropic and the entire rewrite with AI is not the real point (even if it's quite interesting, though). My take is that Jarred, and Bun,didn't demonstrate a serious, adult approach, from "this is my branch, you are overreacting" message to just proceeding with a 1mil+ PR merged in less than m…

Haha TS7 is the next biggest example of, "Let's just do a line by line port to another language instead of seriously examining our architecture"

[deleted]

Re: Claude Code uses Bun written in Rust now

#99

Post by embedding-shape »

ranguna wrote: post #94
embedding-shape wrote: post #2

> For me this outputs Bun v1.4.0 (macOS arm64). The most recent release of Bun on GitHub is currently v1.3.14 from May 12th, so that v1.4.0 version number in Claude supports them shipping a preview of a not-yet-released Bun version. And so, the FOSS project "Bun" silently dies in darkness and is now something completely else. I'm glad I still had "Investigate if Bun is worth it" on my TODO list and hadn't yet gotten…

The PR is public, you can build and use it as well. The anthropic team just decided to use it, and you can as well.

> The PR is public

I'm talking about the 1.4.0 release:

> Claude supports them shipping a preview of a not-yet-released Bun version

Maybe Bun/Anthropic fixed this after Simon's initial release of the blog post, but seemingly when we both looked, it wasn't public.

Re: Claude Code uses Bun written in Rust now

#100

Post by layer8 »

atonse wrote: post #18
junon wrote: post #5

Earlier quoted context omitted.

Why does changing to Rust kill the project? I don't understand the point here.

It’s made absolutely no negative difference, as we’ve seen in the real world in the last 60 days since the merge. I feel weird having to defend reality; reality being that it was merged nearly 2 months ago and tons of people have had their pitchforks out without a shred of actual evidence that this made bun worse in any measurable way. But they still insist it was a mistake. I’ve never met Jared or the bun team but I…

> who cares what language a JS toolset is written in?

Anthropic, apparently, not the least because they blanket-closed all issues submitted before the rewrite. If the language were irrelevant, it shouldn’t matter for the existing unfixed issues.

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