Thanks so much for the comment and I'm really glad you're enjoying it!
I've got a free add-on ("Customizing Superfantasy", which will have some optional rules and new resources for players and GMs) and some updates/rebalances to some of the core text coming soonish. Aiming for early July, as I'm moving, starting a new job, and finishing up a big hardcover game release, so this is admittedly coming behind those other things. 😂