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Zig creator calls Bun’s Claude Rust rewrite ‘unreviewed slop’ (www.theregister.com)
submitted 3 months ago by to c/programming@programming.dev
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*The Rustification of Bun#

Rewriting 500,000 lines of Zig into another language would be a gargantuan undertaking if done by hand. “A rewrite in another language would take a small team of engineers a full year. It would mean freezing bugfixes, security fixes or feature development for that time,” Sumner wrote.

Instead, Sumner went with Claude. He spun up about 50 dynamic Claude Code workflows, reaching a peak of about 1,300 lines of code per minute and generating over a million lines of Rust code. The job took 11 days and cost about $165,000 at API pricing. Claude Fable did most of the heavy lifting.

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[–] 78 points 3 months ago (7 children)

There's no way a million lines of code were reviewed in 11 days. Not by a human at least.

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  • [–] 51 points 3 months ago (3 children)

    It took the llm 11 days to generate the code

    It doesn't seem to say anywhere anyone reviewed it in any time

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  • [–] 8 points 3 months ago (1 child)

    No need, you just ask the AI to "make no mistakes", then you spawn a second AI to review the first AI's output, and then you ask a turdthird AI to review the output of the second AI. Easy peazy. No need for pesky engineers and their stupid human inefficiency. /s

    Non-ironically though, I think that's exactly what they did. I have watched Prime's video about this, and, although I was second-screening his video, I believe he mentioned that they used this "technique".

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