Please consider packaging senpwai for nixpkgs. That would be really great.
I tried but couldnt go any further because of these dependencies cryptography , bs4 which is available on nixpkgs as beautifulsoup4 and argparse which wasnt available on nixpkgs but seems to be deprecated because I saw lots of packages claiming to be drop-in replacements for argparse. Also someone told me that appdirs is deprecated and no longer maintained and I should switch to platformdirs instead