LineageOS is now possible on the Hisense e-ink devices (A9 and HiReader Pro and possible others also). See the following reddit post:
https://www.reddit.com/r/eink/commen...or_hisense_a9/
I'm wondering if anyone who has technical knowledge of the Boox devices if they think this would ever be likely on the variety of Boox devices. I know a lot of people are concerned with the privacy of Boox devices and LineageOS would be a game changer in this respect.