I've been trying to get LLMs to make Racket "hashlangs"† for years now, both for simple almost-lisps and for honest-to-god different languages, like C. It's definitely possible, raco has packages‡ for C, Python, J, Lua, etc.

Anyway so far I haven't been able to get any nice result from any of the obvious models, hopefully they're finally smart enough.

† https://williamjbowman.com/tmp/how-to-hashlang/ ‡