When the pandemic started, it seemed like there was an opportunity to build games where you still are participating in physical space, but certain aspects of the game are shared across a network and then transform back into something that occupies physical space. I thought that could be something like AR but your cards open up other doors.
It would be fascinating to have a deck that shares cards in multiple distant places, with people playing the game from far away but connected through your cards.
Adding an element of time delay to the synchronization of the deck would be fun too.
Please provide a way to follow along on your progress, like a mailing list! Such a great project.