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How is the Bun rewrite in Rust going?

lockwood.dev

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Re: How is the Bun rewrite in Rust going?

#81

Post by chmod775 »

muglug wrote: post #47
virajk_31 wrote: post #15

Earlier quoted context omitted.

Author kept "going" in title because there has been no minor/major release in last two months which unusual for this project if you review the older releases.

A major rewrite in another language is also unusual for this project. It took TypeScript a year to go from announcing tsgo to releasing TypeScript 7.0. That work was done in parallel; here the work is being done serially — and it’s likely to take much less than a year for a new release.

> It took TypeScript a year to go from announcing tsgo to releasing TypeScript 7.0.

These are not comparable at all. The bun "rewrite" really is more of a translation of a software that is mainly dogfooded, created with an at best loose regard for a wider ecosystem.

TypeScript 7.0. by comparison is not just a translation from one language to another. It's a true rewrite that at the same time has to consider a massive existing ecosystem (which needs to catch up first or you risk fragmenting it). Plus you might as well consider 6.x part of the effort, since that was the stepping-stone.

Also where bun really is just a runtime implemented with a bunch of glue code plus supporting tooling, TypeScript is much more complex. Change one part of TypeScript and you can get cascading issues somewhere else in the compiler easily. Change something in Bun and you'll likely just break some discrete part.

Re: How is the Bun rewrite in Rust going?

#83

Post by qskousen »

usef- wrote: post #26
SquareWheel wrote: post #20

I'm not sure how much insight we can glean from looking at the number of commits and release cadence here. In the aftermath of such a major refactor/rewrite, I would expect it to take some time to get back up to their usual development speed. Jared and the other developers are new to the Rust codebase, even if the structure is largely familiar. They're also likely focusing on other priorities right now such as tracki…

They also have made a release, in a sense, since they moved all Claude code users to it a month ago. (And apparently no one noticed). I think they're taking things "gradually" as they are under a lot of scrutiny and no rush for full release.

I've had several bun-related crashes in Claude code in the last week, which I don't remember ever seeing before then.

Re: How is the Bun rewrite in Rust going?

#84

Post by klausa »

flohofwoe wrote: post #63
usef- wrote: post #26

Earlier quoted context omitted.

They also have made a release, in a sense, since they moved all Claude code users to it a month ago. (And apparently no one noticed). I think they're taking things "gradually" as they are under a lot of scrutiny and no rush for full release.

Claude Code most likely only uses a tiny fraction of Bun/Node features, so Claude Code switching to the Rust rewrite doesn't mean all that much.

Look, I understand being skeptical of the whole process; the discourse about this has been extremely tiring.

But at some point if “moving one of the biggest actively maintained and used codebases to it without anyone noticing” is dismissed as “it doesn’t mean all that much”, then we’ve lost the plot a little bit somewhere.

Re: How is the Bun rewrite in Rust going?

#85

Post by joks »

internet2000 wrote: post #57

I don't get it. Because they haven't cut a new arbitrary version number, we're denying it got done (in their perspective) and being used in a massive product already? If you're being pedantic, no it's not "done," but nothing ever is.

It's not "done" if it's not stable and released. It's being canary tested by Claude Code users essentially but it's still being heavily worked on with tons of $ being poured into it and there's still no sign of them considering it stable and ready to go. That's the point of the article.

Re: How is the Bun rewrite in Rust going?

#89

Post by podgorniy »

> I hadn’t seen the numbers for the CI/CD costs of Buildkite, and as you might have noticed from above, some PRs were written by Anthropic employees.

The leaked code of the claude had switch flag where claude pretends to be employee. You can't trust/expect that those PR's were authored by people.

Re: How is the Bun rewrite in Rust going?

#90

Post by whstl »

benjiro29 wrote: post #41

I really do not understand how software developer think anymore. Using a LLM to translate a project in a short time, is by itself incredible. Just like one-shot whatever office clone. But what makes software is not the fast creation of a "product" but that actual development of its features. Figuring out how everything needs to work together, fixing the bugs, and the o so boring UI work. I have used LLMs to create st…

I think this is perfectly fine.

If you explore Github, you're gonna see thousands of abandoned game engines, compilers for made-up languages. And that has been happening since before the LLM era.

I used to be part of an OS messaging board in the early 2000s and almost everyone had their own OS. A dozen people or so could even run Firefox! I remember (now legend) Terry bothering us to check out LoseThos or GodOS or whatever was its name, but quite a few people had OSs that could do more than that.

Not all software needs to be commercial to be useful, even if it's just for a learning experience. I have learned a lot from those experiments, even if they're not polished.

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