How does it work? Does it just use stockfish under the hood? I just remember the times when I tried to use an AI model to play chess and half of the time it either hung a piece or made an illegal move.

Was a bit to overzealous... Just read the readme. Looks pretty cool. Maybe I'll give it a try and see how it compares to the chess.com analysis (although I have to say that I never really use it).