There's no wrong in vibe coding as long as you check what's the output. I can be wrong or missing the goal of course. But the work is in progress and I'm not writing a bash script for the theorem of pytagora. It's more complex and I'm studying as I go. You reviewed frontend/ast.ml, the small kernel, and concluded MLTT, but you missed frontend/cubical.ml. Thanks for the time you took to bring this critique, it will be helpful in the end.