Ahaha, I feel this comment.

I used to do backend development in superior languages, and sometimes do hobby frontend in superior languages, but my work is Python now. And it kind of has to be Python: we do machine learning, and I work with GDAL and PDAL and all these other weird libraries and everything has Python bindings! I search for "coherent point drift" and of course there's a Python library.

The superior languages I mentioned... perhaps they have like a library for JSON encoding and decoding. You need anything else? Great, now you're a library author and maintainer!