What is now the intended method of compiling/using a language that does not have a pypi package?

[MartV0]

Now that Language.build_library is deprecated since version 0.22.0 what is the intended way to parse a language that does not have a dedicated pypi package. In my case i would like to parse R. Any help would be greatly appreciated.

[ObserverOfTime]

In the general case: submit an issue or PR to the language repo.

In your case:

pip install git+https://github.com/r-lib/tree-sitter-r@next