Found instructions online for this little e reader. This is running on a heltec wireless paper, so if I get bored of this I'll just use it as a meshtastic node, but I gotta say...I really enjoy this tiny e reader for reading a little bit at a time on the go.

It's not free, but the source is open for messing with.

Here's the store link and build guide
https://m.youtube.com/watch?v=49U3f7eV1AI&t=319s&pp=ygUMdGlueSBlcmVhZGVy