I’ve tested it on Linux and they should work - it’s just that most actions are quite contextual and there is a mana limit, both if which isn’t particularly well communicated in the jam version. We’ll update the game with highlighted tiles and better UX after the review period.
I see! I heard the indicator sound effects for those actions which were unavailable, but even those that made a sound that indicated success didn't seem to have an effect. I look forward to trying again after the jam!