Yeah, that’s what steam input did, it emulates a controller on the fly, you can even emulate a keyboard and mouse in games that don’t support controllers, I have a steam controller and in most fps I configured it to emulate a controller but with mouse look on the right touch pad and gyroscope on a light press on left trigger, unfortunately some games don’t support simultaneous mouse and controller use, other games change UI when switching between mouse and controller, which may be annoying