STL for the case https://beepberry.sqfmi.com/docs/enclosures
e-paper != e-ink (which is a specific type of e-paper)
e-paper != e-ink (which is a specific type of e-paper)
I, too expected an e-ink screen and was disappointed to find it was an LCD.
Wikipedia seems to think that e-paper and e-ink are in fact the same thing: https://en.wikipedia.org/wiki/Electronic_paper