Comment by trynewideas

The tray interface immediately reminded me of Harmonix's Dropmix.[1] A Dropmix-alike where you can program your own "cards" to store and play, or even just trigger, short loops on a playback device would be incredible.

Adventure card games,[2][3] which blend tabletop RPG and card game mechanics to play through a story and often rely on mutable and custom third-party or player-created cards, are another niche that could rock programmable cards. They don't rely on collectability or random card packs - everything to play comes in a base set, and expansions take the forms of additional classes or adventures. But they can be tedious to set up, card mutability means marking and smudging cards or sleeving them, and using third-party or player-made cards usually requires getting them printed to fit into the deck seamlessly - programmable cards can dodge all of those issues.

1: https://www.youtube.com/watch?v=8ZLXSmq9s1A

2: https://www.strangeassembly.com/2019/review-pathfinder-adven...

3: https://play.google.com/store/apps/details?id=net.obsidian.p...