Three layers, one identity.
At the top, chains: People Chain runs the game, score and membership logic. Asset Hub runs the naming.
In the middle, your host (the app on your phone or desktop) holds the root key and derives one for each product it talks to.
At the bottom, Jollity turns plain protocol calls into an actual game. Play it, and it quietly raises your standing on-chain: Devicehood becomes Membership, one Score point at a time.