> I find myself battling untyped/undocumented YAML/JSON configurations, syncing JSON encoders/decoders, massaging incompatible dependencies

I feel your pain on having to manage so many dependencies. I write primarily in Python, and the various pip / Pipenv / pipx / PDM / Poetry dependency managers drive me pretty crazy. That's not even accounting for the multiple Python versions I need!

That said, I'm surprised that you're trying to _alleviate_ this by implementing your FP language in Python. The Python ecosystem is full of half-documented config files, incompatible dependency trees, etc.

Have you considered implementing it in any other languages after the Python one proves its worth? For example, if the language becomes strong enough, would you consider writing a scrapscript compiler in scrapscript, itself?