Usually writing to eink screen requires proprietary stuff (drivers, waveforms...). Especially if you want partial refresh or low latency. I suggest to look at

Usually writing to eink screen requires proprietary stuff (drivers, waveforms...). Especially if you want partial refresh or low latency. I suggest to look at reMarkable tablet, a device with an wink screen which runs Linux and respects the GPL. Has been discussed before on HN [1] They recently added documentation about developing apps for the devices [2], but the community has been doing that for years [1] https://news.ycombinator.com/item?id=25124211 https://news.ycombinator.com/item?id=25124211 [2] https://developer.remarkable.com/documentation/qt_epaper https://developer.remarkable.com/documentation/qt_epaper