This is so cool! I love to see people hacking together apps for the reMarkable tablet
I made a little app for reMarkable too and I shared it here some time back: https://digest.ferrucc.io/
It's so great seeing these, always make me want to play with developing apps for the Remarkable 2. Do you have any sources you can recommend? Thank you!
edit: found the official developer website https://developer.remarkable.com/documentation
https://github.com/erikbrinkman/rmapi-js