This is a very cool project!

When I first heard of it (through a community member in discord), I wanted to see if I could replicate it on FrameOS (my software for running anything on an e-ink panel), and sure enough, I got quite close: https://scenes.frameos.net/s/bird-field-journal

This is obviously nowhere as complicated as OP's project, but I thought I'd just share that your project inspired me to build something similar too.