On: Ruff – a fast Python Linter written in Rust

A counterpoint is the typescript compiler, arguably one of the most complex pieces of dynamic language tooling out there. It's written in typescript itself, and reasonably fast given that it has to implement a hugely sophisticated type system.

This shows that it's entirely possible to write fast tooling in dynamic language if you know how to.

Is the compiler expected to run only where a JS interpreter exists? (Which, at the time TS was created, consisted solely of Node?)