Thanks for the comment! The game is meant to be more setting agnostic, ready to slot in to any kind of world your table might want to visit or create. I'm not ruling out designing a default setting one day, but if anything it'll probably be much further down the road.
Yeah it totally works as-is! I think it might really sing with a couple moor more world-interaction Moves, like something for long journeys and that sort of thing, but that'd just be gravy.
The dual-playbook approach is really clever, and treating "mana" like B.O.B. tokens feels like a stroke of genius.