The doc/comment is great, but I noticed that some link is like

//! * Babel plugin implementation: https://github.com/babel/babel/tree/main/packages/babel-plugin-transform-nullish-coalescing-operator

This is potentially buggy, because main branch is always changing and maybe someday the file is gone.

It would be better if the file is associated with a commit or tag, then it's expected to always be there.