Comment by idle_zealot

I got an Xteink X 4 a few weeks ago and it's a very cute device. While I'm a fan of the hardware what's been really fun is noodling around with building some custom firmware and sync architecture to optimize content for the device's extremely limited CPU and Memory. That's meant a custom format for images and metadata that match the device's hardware and interface needs and an automatic ingest pipeline for building these files from common book/comic formats. Maybe some day I'll even read a book on the thing!