I’ll start easy 
~~merge: https://github.com/NixOS/nixpkgs/pull/58643~~
~~merge: https://github.com/NixOS/nixpkgs/pull/56464~~
~~merge: https://github.com/NixOS/nixpkgs/pull/58442~~
I don’t know enough about node to say this is good, but I have reviewed the module and everything there looks good. If someone would like to review the package that would be appreciated:
https://github.com/NixOS/nixpkgs/pull/58096