I was never able to remember any #Guile command line parsing API, so I did the natural thing to do: I created another one from scratch.

https://fishinthecalculator.me/blog/arguments-parsing-in-guile.html

the API is very small, enough to fit in my head. reach out if you have any feedback. I think this can be useful in many small scripts, maybe also the ones generated from #Guix program-file gexps.