If it helps, I went for the elegant all in one PCB version (dutifully replicating the e-paper driver schematic from Waveshare). I had to learn a fair bit about

If it helps, I went for the elegant all in one PCB version (dutifully replicating the e-paper driver schematic from Waveshare). I had to learn a fair bit about how to specify inductors (not something my similarly basic EE background covered much of). I somehow put a short on the design so my JLCPCB PCBA order is worthless. The short only appears when soldering the ESP32 down and I’ve tried three different boards with three different ESP32 C6 modules and it’s present in all of them. I would have been much better off prototyping with LEGO parts first.