Speaking as a contributor to Prettier, it is _not_ an easy codebase for someone who knows JS to just jump into and contribute.
Furthermore, projects like Ruff show you can have a lot of contributors for projects like this. Maybe because there are lots of devs who use TS or Python in their day job, but want excuses to use Rust on the side.
Re:Prettier $20k Bounty was Claimed
by mplanchard on Monday November 27, 2023 @10:44PM
(#38442076)
Anecdata, but as a maintainer of both Python and Rust projects, while it’s true that the Rust projects have fewer contributors/issues, the quality of contributions is on average higher
Basically I'd assume, if a project targeted at JS, switched to rust, the number of useful pull requests would be 50-100x less.
I wonder if anyone has any data on that (and similar projects re-written in C++ or Go etc...).