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It doesn't claim that.

It claims:

1) Rust is fast, so that helps some.

2) They run hooks in parallel, and that helps a lot.

I was replying to OP not the article. The article really muddles through and hand waves away the Rust vs Go - I’m seriously skeptical the overhead of the language would show up at all with the work being done here.

You are moving the goalposts? You first claimed that Rust doesn't help with parallelism. I pointed out they never claimed it did. Now you are talking about something else?

> lefthook is written in go, hk is written in rust. This will make hk faster

Direct claim from the article.

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