vitogit/pgn-tactics-generator ? reverse-engineered prompt

Build me a simple Python tool that takes a PGN file of chess games and turns it into a new PGN full of tactics puzzles.

I want to be able to point it at my own games, or download games from Lichess by username or tournament id, then run one command and get a tactics.pgn file I can open in a chess app or study. It should use Stockfish to find tactical moments, and let me control how deep it analyzes so I can trade off speed and accuracy. Make the defaults fast and easy, but include a few options like quiet mode, choosing the input PGN, and whether to be strict about only keeping clear tactics.

Keep it practical and lightweight, with a clear command line flow and helpful errors if Stockfish or the PGN file is missing. If needed, look up current docs online for Lichess or Stockfish behavior.