Ask HN: what would you recommend as a hackable e-ink reader? Partly reading my own archivable, un-DRM’d books; partly playing with e-ink.

There's Open Book open source e-ink reader. Not sure how usable it is. https://github.com/joeycastillo/The-Open-Book

The next model is planned to use the Raspberry Pi Pico microcontroller https://twitter.com/josecastillo/status/1356125145681846276