Interesting discussion about commercializing #opensource software in the context of #chess engines. With ChessBase's Fat Fritz 2 using Stockfish's code.
https://lichess.org/blog/YCvy7xMAACIA8007/fat-fritz-2-is-a-rip-off
https://www.chess.com/news/view/chessbase-fat-fritz-2-stockfish-leela-chess-zero
https://stockfishchess.org/blog/2021/statement-on-fat-fritz-2/