Hi, I think, it should be possible to recieve a PGN-file after a played game is finished to analyze it further.
To write a PGN, you can use python-chess by niklasf.

For example: you play a game against the Fairy Stockfish and you want to analyze it on Lichess or Chessx with Stockfish. Therefore you need a PGN, to insert it and let Stockfish analyze it.