If you mean touch pad support, the game should already be compatible with it. There are no essential functions that are bound to the mouse wheel or middle click, so the game is already playable with a touch pad. I would recommend a mouse tho.
I haven't optimized the controls for an xbox controller, and if I was to add pad support, I would also want to add proper controller controls, but that task seems a little large for now. If I add an option to rebind controls in the future, I will try to add controller support, but I can't promise any of that is gonna happen.