Since Nix packages are distribution-independent, once you have it packaged with Nix, you could theoretically skip packaging for Ubuntu etc., but of course that may raise the bar of entry for your users.
I doesn't work on windows, so you lose half of your users. And WSL is not the answer to that.
Also, unless you repackage thousands of compiled c extensions and you play well with anaconda and can plug into the entire python ecosystem of platforms such as heroku, python anywhere, databrick and so on, you then lose 90%
Also, unless you repackage thousands of compiled c extensions and you play well with anaconda and can plug into the entire python ecosystem of platforms such as heroku, python anywhere, databrick and so on, you then lose 90%