Looking at https://news.ycombinator.com/item?id=33222687, and inspired by https://www.thirtythreeforty.net/posts/2019/12/my-business-card-runs-linux/ and https://pockit.ai/, I'm wondering what it would take to create actual cards with something like Pi Zero or even Arduino based logic, implementing basic Unix commands, data structures, and I/O (keyboard, lcd, BLE<->smartphone app, etc); the goal would be that each card is sub-$1 and ideally significantly less (for the basic cards, some might be more), and the target market would be some combination of education, fidget/puzzle toy, and perhaps just a fun to interact with these kinds of components in a satisfying tactile way. Could also have a way to convert to a running program. Thoughts welcome.
I'm also thinking of the interactive room built by Bret Victor, where placing physical pieces of paper into the environment would add software functionality (mostly with input via cameras reading barcodes, and output via projectors).<p>It might be counterintuitive to use that kind of environment to teach people about traditional keyboard / text-based programming but it might also be fun.