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by mikeocool 1 day ago
If that is really what they are concerned with, they probably could have just had Claude Code rewrite Claude Code in rust? That likely would be far more efficient than changing the language of your typescript runtime that ships to run your react-based CLI app.

I imagine the $800k or whatever this has cost is coming out of Anthropic's marketing budget, so they can make a big splash about it.
2 comments
neuronexmachina 1 day ago
> If that is really what they are concerned with, they probably could have just had Claude Code rewrite Claude Code in rust

Rewriting a runtime with well-defined interfaces and behavior is quite different from rewriting a user-facing application under active development by a decent chunk of their organization.

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SpicyLemonZest 1 day ago
I agree, but this difference is very frustratingly omitted from the hype-sphere surrounding the rewrite, even though most software developers don't work on a runtime with well-defined interfaces and behavior. I know a number of people who've developed severe FOMO that their projects take longer than 2 weeks and maybe it's because they're not AI native enough.

(I don't mean to be critical of the Bun maintainers, who have always been open about the fact that they leveraged the specific context of their project to do this effectively.)

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wrs 1 day ago
If you look at the reasons for rewriting Bun [0], they weren’t about efficiency and they don’t apply to Claude Code. It’s already written in a memory-safe language, and doesn’t have to interface to a library with a tricky set of invariants.

[0] https://bun.com/blog/bun-in-rust

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