Heads up: The Mac build is not functional. I played the Windows build (solo) on the Steam Deck and I have to say it is phenomenally well made. It looks and sounds fantastic and the level of effort and polish is extraordinary. I can easily imagine myself playing a full version of this game.
One quick suggestion: I didn't find a way to skip the intro. With a 20 second game, would be good to be able to hit a button and go straight back into a replay without waiting for cutscenes to finish.