this post was submitted on 15 Jul 2026
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Programming

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153
Zig creator calls Bun’s Claude Rust rewrite ‘unreviewed slop’ (www.theregister.com)
submitted 18 hours ago by HaraldvonBlauzahn@feddit.org to c/programming@programming.dev
48 comments fedilink hide all child comments
 

*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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[–] vext01@feddit.uk 60 points 17 hours ago (2 children)

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

[–] Baizey@feddit.dk 34 points 13 hours ago (2 children)

It took the llm 11 days to generate the code

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

[–] BiteSizedZeitGeist@lemmy.world 1 points 15 minutes ago

They code review in prod, like REAL PROGRAMMERS HOO RAH

[–] vext01@feddit.uk 2 points 4 hours ago

Exactly

[–] locuester@lemmy.zip 47 points 16 hours ago

Ew. Reviewing code is so 2024