I've been using this cool project to successfully test a number of DuckDB extensions, including this one:
https://github.com/mlafeldt/quack-zig/blob/a9dbb6c8d181ba550d9e4fe6749ee9b8338fd4f7/build.zig#L92-L99
I'm very happy with the results and would love to see a real Python package released, even in alpha or beta, so I/we can stop cloning this repo. :)
Let me know if I can help.