Many people seem to be calling for the release of Pebble OS source code. Of course that is unlikely to happen. So how about instead we reimplement it under a FO

Many people seem to be calling for the release of Pebble OS source code. Of course that is unlikely to happen. So how about instead we reimplement it under a FOSS license? Ever since I heard the rumours about this acquisition, I started wondering just how difficult that would be to do. I'm sure there are plenty of you here with experience in these types of things, is this a good idea or a waste of time?