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Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc

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Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc

#1
https://xunroll.com/thread/2053047748191232310

Recent and related: Zig → Rust porting guide - https://news.ycombinator.com/item?id=48016880 - May 2026 (540 comments)

Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc
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Re: Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc

#4
post #3

[flagged]

> absolute position of hating something such as AI and progress

Most takes I've seen are far more nuanced.

Key is that 'progress' has a positive connotation. It is different from change. Mere change - such as new inventions - may not necessarily be aligned with progress in a field, society, etc.

Change may be inevitable, but it's up to us humans to sculpt it into progress.

Re: Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc

#5
6 days of work to do this. Even if it doesn't end up becoming meaningful, it shows just how tokens and work done will be linked now and in the future.

It's going to be hard to compete with someone or a company that has more compute. They will just be able to do things you can't.

Re: Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc

#6
post #3

[flagged]

> absolute position of hating something such as AI and progress Most takes I've seen are far more nuanced. Key is that 'progress' has a positive connotation. It is different from change . Mere change - such as new inventions - may not necessarily be aligned with progress in a field, society, etc. Change may be inevitable, but it's up to us humans to sculpt it into progress.

But I am talking about Zig and others who have the same stance. Zig has a very strict No LLM / AI contribution policy and it likely got in the way of the Bun maintainers at Anthropic. From [0]

>> No LLMs for issues.

>> No LLMs for patches / pull requests.

>> No LLMs for comments on the bug tracker, including translation.

[0] https://codeberg.org/ziglang/zig#strict-no-llm-no-ai-policy

Re: Bun's experimental Rust rewrite hits 99.8% test compatibility on Linux x64 glibc

#9
I think the industry is moving to English as the programming language, and specifications-context-tdd as the framework for building software.

Many find it distasteful, and many finding liberating. I think it's broadly correlates with how they feel about expressing themselves in english vs say C++.

As a side question, is there anyone who's using LLMs primarily in non-english mode to program? I suspect there's quite a few people using mandarin, but can someone share first-hand account.

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