321–330 of 560 posts
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Paying customers get LTS. Are any paying customers asking for a Zig branch LTS? Or are you expecting open source maintainers to do free work for no particular reason?
Java, Node, and .NET have LTS versions all of which are free to use. > Or are you expecting open source maintainers to do free work for no particular reason? Free work? Last I heard Anthropic had acquired Bun.
Article did a decent job of showing discipline and care and human involvement to assert the automated rewrite was done diligently, as best as it can be when using AI for it. I does make me feel a bit more comfortable about it. As an aside, I don't know why anyone would not want to use a memory-safe (and possibly race-safe) language in 2026. Rust gives you that in a performant package, so if you are turned off by GCs…
Isn't ironic for a project that successfully killed all past and future human involvement?
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> The rust compiler is very slow. It's not “very slow”, that's a tired meme. It's slower than it could/should, but complaining about rustc being “very slow” is a clear misrepresentation, especially when everybody seems to have been fine with tsc's historical performance for instance. It could be nice if it was faster indeed, but people claiming it's “very slow” are just showing they never worked with it. > The best w…
Why do you think it is not slow? As far as I know the only language that compiles slower is C++, and even then the compilation speeds between c++ and rust seem to be comparable. I believe c, Fortran, zig, C#, Java and golang are all faster compiling languages. That makes rust pretty slow in my book. I get that it doesn’t bother everyone, but that doesn’t change the facts.
The average cargo check for the projects I've worked on, usually finish in less than 1 second, with `cargo build` completing in a single digit second (often below 2s), it's not slow by any means.
> I believe c, Fortran, zig, C#, Java and golang are all faster compiling languages.
Sure, but the difference between type checking is 10ms and type checking in 500ms is barely noticeable for a human being anyway, despite the x50 difference.
> That makes rust pretty slow in my book.
“Slow” is a perceptual thing. It doesn't matter if it's slower in absolute benchmark performance. If it doesn't slow you down in your work it's not “slow”.
> As far as I know the only language that compiles slower is C++
Typescript's compiler is much slower than Rust's, but it's plenty fast enough for most people and you almost never see complains about it because it mostly doesn't matter outside of pissing contests.
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I don't think it's care to categorize this as "a naive rewrite away from [Zig]" - Jarred has been immersed in this project for five years, got to benefit from everything he learned along the way and spent $165,000 of tokens on the most advanced coding LLM anyone has access to. I expect if he'd spent $165,000 running Fable against the Zig version he could have got a 5% performance improvement, too.
I can confirm a naive rewrite won't make things faster. I've been working on rewriting Postgres in Rust. I rewrote things function by function similar to how Jarred did. Even though the new Rust code mapped closely with the previous C code, it was 8x slower. This was due to myriad of reasons. For example naively converting a C union into a Rust enum can be slower because Rust stores a tag with the enum, while C union…
Like, you have now created your own new database engine that happens to be compatible with Postgres. Wouldn't you take an absolute pride in giving it your own name? Why call it "Postgres rewrite in "?
Without commenting on Bun itself as a project, or the nature of the rewrite, it can't be good for Zig that a naive rewrite away from it fixed memory leaks, improved stability, shrunk binary size by 20%, and improved performance by 5%.
I would guess that people looking to use Zig understand that those are project concerns and not language concerns.
Without commenting on Bun itself as a project, or the nature of the rewrite, it can't be good for Zig that a naive rewrite away from it fixed memory leaks, improved stability, shrunk binary size by 20%, and improved performance by 5%.
Wouldn't the same improvements have been made in zig if they instructed the agents to improve instead of rewrite?
Article did a decent job of showing discipline and care and human involvement to assert the automated rewrite was done diligently, as best as it can be when using AI for it. I does make me feel a bit more comfortable about it. As an aside, I don't know why anyone would not want to use a memory-safe (and possibly race-safe) language in 2026. Rust gives you that in a performant package, so if you are turned off by GCs…
I've observed that dumber models are able to vibecode in safe languages a lot easier since the compiler errors can self correct the models hallucinations, while they end up marking a task as complete in dynamic languages despite it not actually working. If I'm vibe coding something I'm always just going to do it in Rust.
I imagine writing plain js or python with it would be much much riskier.
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The article explicitly mentions the maintainability as a foremost concern.
People say a lot of things, especially when they have a vested interest in a positive outcome. Bun has been fully vibe coded into another language. There’s no way in hell it’s maintainable. Go read any analysis of the Claude Code leak for proof.
There are different definitions of "maintainable". It seems the prevailing culture at Anthropic is to not touch code manually anymore. So for them "maintainable" means the LLM can fix it.
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Why do you think it is not slow? As far as I know the only language that compiles slower is C++, and even then the compilation speeds between c++ and rust seem to be comparable. I believe c, Fortran, zig, C#, Java and golang are all faster compiling languages. That makes rust pretty slow in my book. I get that it doesn’t bother everyone, but that doesn’t change the facts.
> Why do you think it is not slow? The average cargo check for the projects I've worked on, usually finish in less than 1 second, with `cargo build` completing in a single digit second (often below 2s), it's not slow by any means. > I believe c, Fortran, zig, C#, Java and golang are all faster compiling languages. Sure, but the difference between type checking is 10ms and type checking in 500ms is barely noticeable f…
But you have to compile Rust code to run it. You can run TypeScript code without type-checking it. That’s a massive difference in the development workflow.
The new TSC, supposedly 10x faster, will be very pleasant to have but not as much of a game-changer as you might expect. A 10x faster Rust compiler would be incredible.
Personally I don't care that they used AI to rewrite Bun to Rust. Even if 1.4 is not good enough it will probably get better over time. What has pushed me back to Node is seeing how amateurish the transition has been handled. - No LTS support for the Zig version regarding CVEs etc. - Huge bugs like the 3MB memory leak mentioned in the blog post abandoned in the Zig version to basically force people into the Rust vers…
Yeah. The human aspect of the transition was just incredibly bad. The person behind Bun has just demonstrated how much he values the community.
But I'm sure he will build another community around this rewrite. After all, there is an abundance of people cheering "Rust rewrites".
Until the new favorite language comes up.