Thanks for playing! You're definitely right, the resource generation would have been better with more indications than just a tiny number going up or down on the side. I also probably didn't communicate this clearly, but there are no hit points, just cards. Taking damage means discarding a card. If you have no cards, you discard a system instead. If you have no systems, you die.
I'd like to flesh things out more (and add more cards) in a follow-up, but I'm going to leave this version as-is for now so it doesn't affect judging.