Thanks, haven't seen it before, but love the idea of it. It certainly takes the concept a lot futher that I intended with this project. My goal is far is to relyt on well-supported open source tools and frameworks, and give both the software and hardware flexibility for people to create what they need. Think of it like FlipperZero, but for outdoors

Any relation to the Daylight Computer folks?

https://daylightcomputer.com/

Not on my side, but it looks awesome. +1 to the e-ink point above.