[blattimwind]

> My mind is kind of wondering how this would ever be stable/maintainable to use for Python

CPython has a stable C API for interacting with the interpreter and Python objects. Presumably FLI goes through this API to interoperate with Python, just like any C/C++ application embedding CPython would.

Edit: Yep, https://github.com/guenchi/FLI/blob/master/pycall.sc

[guenchi]

Yes, it embeds the python interpreter into Scheme via C-api.