I’ve been thinking about building my own semi-dumb phone out of a pi and a colour e-ink screen, I just want something that is FOSS (unlike KaiOS unfortunately) and has a few smart functions like internet messaging and maps. I’ll probably still carry my Android phone (running LineageOS MicroG) for the few Android apps I really need but it’d be nice to be able to keep it in my bag with my PSP and Kindle rather than in my front pocket at all times!