Ugh you're right. There was a new AST-based version control system that came out a month ago and I couldn't remember the name. I asked an LLM what the name was and repeated the answer the LLM gave me without checking (facepalm).

I may have been thinking of https://github.com/gritzko/librdx/tree/master/be

Thanks for the correct link! AST-based version control sounds like a great idea.