@carbonatedcaffeine Impressive. But what always worries me about using e-ink displays this way, does it not eliminate the primary benefit of using e-ink in the first place: that is using very little energy to display a static image for a long time?

I don't see how using e-ink as a screen for displaying videos or any kind of highly interactive elements would still out-compete other display technologies. I know it's hardly a great comparison, but I've seen how well my Kobo battery holds when reading a book, vs reading a manga (even when I limit full refreshes to an extreme). Refreshing pixels seems to be heavily energy costly, so the efficiency comes from how long you keep a pixel static.

So I'd be curious to see a power usage comparison between an e-ink screen and a LCD or OLED one, in an heavy use case like this one. Can it still maintain any energy benefit if you have a heavy work load, instead of just reading and occasionally take a note?

I've always been fascinated with e-ink as a technology, and love the efficiency it can bring in select tasks. But at some point, it always seemed that employing them as say, a regular Android/Linux screen comes with more drawbacks than benefits.