E-ink is a real missed opportunity for smart homes. This is just a hunch but I suspect there is a niche in the smart home market for people that want their homes to be "informative" but not "smart".

An example:

A voice-enabled tablet (ala Echo Show) is intrusive and disrupts the aesthetics of the home. An e-ink display that has low/no interactivity but provides useful information blends into the home a lot better.

Unfortunately the smart-device market isn't interested and building your own seems to be difficult.

Does anybody know if there are useful libraries for displaying e-ink? It should be simple to use a low cost RPi board like a pico and connect it to an e-ink display fitted into a frame.