I also though rewrites of JS projects were only in part motivated by perf gain. Sure they were the most advertised benefits of the rewritten tools, as that comm

I also though rewrites of JS projects were only in part motivated by perf gain. Sure they were the most advertised benefits of the rewritten tools, as that communicates a benefit for the users of those tools. > I find Rust allows me to feel far, far more confident in tooling specifically because of its type system. Usually the JS projects become really hard to work on the growing up. Good JS needs a lot of discipline on the team of devs working on it: it get messy easily and refactoring becomes very hard. Type systems help with that. TypeScript helps, but only so much... Going with a languages that both has a sound type system (like Rust) and allows lots of perf improvements (like Rust) becomes an attractive option.