Keyboard is supported, settings are in the player setup menu :)
I'm glad to hear that. So you just change it in the settings ? Yeah I think that having the keyboard as the first option would be ideal. Also maybe put like a list of keys in the description once you add more moves and stuff. Also start a discord server to get people involved :)
Yes you can change it :) If you don't have a controller, it should use keyboard for player 1 by default.
I'm not really a discord kind of person, the problem with too much input is that it takes time away from actually working on the game, so I'll keep to listening to comments here, and on reddit (I post an update there every new version) :)