I use homerow, but I also have a qwerty hotkey for games, yet I still can’t play celeste left-handed. I use my right hand to jump, dash and climb. Without being able to remap keys, even in a json or something, for me, this game is unplayable :[ sucks cuz it looks amazing.
edit: they fixed this really soon after. THANK YOU. I got to play and it was really fun! :]