Yawnoc runs well on Steam Deck. The only known issue is that the controller input in desktop mode doesn't work. As long as the Steam Deck is in game mode, Yawnoc runs fine. (It's actually how I prefer to play Yawnoc.) MacOS is not currently supported, but the game may function with Wine or by running the source code that's included along with the game. There are a fair number of wishlisters who are using MacOS, so support may be added after release. Thanks for checking out Yawnoc! :D