[offtop5]

What's the unique value proposition here ?

You can get an e paper hat for a raspberry pi zero and accomplish the same thing.

[robertlangdon]

Sure you can. We wanted something like this for ourselves and thought of sharing it with the world. Thankfully some of them liked it too

[joelthelion]

You won't get a month on a single charge with an RPi, if I'm not mistaken.