If you cant, No Problem, Try porting the AOSP or Other OS to Creo Phone.
If you cant create new things to Fuel OS, Atleast port RAW AOSP or Other Perfect OS available in the Market. Porting is far better and faster than creating new stuff. Its need of the hour.
Having 21MP sony exmor camera and not working as we wished is like having 1lakh old 1000rs notes in hand.
Port other readymade OS to creo and put all your fuel sense apps into it. That’s easiest way things move one.
Best option , you can provide us mark 1 team