I've run across NiLuJe before as a prolific contributor to kobo/kindle hacking. They have a tool called [FBInk](https://github.com/NiLuJe/FBInk) that can display images on kobos. [This PR adds support for the first elipsa](https://github.com/NiLuJe/FBInk/pull/64/files) which is a good dive into how some of the screens work on various platforms. This also lead me to look at the remarkable tablets. They did use an i.MX6SoloLite on the first one [old wiki page](https://web.archive.org/web/20230203130927/https://remarkablewiki.com/tech/specs/rm1_specs) and the i.MX7Dual [old wiki page 2](https://web.archive.org/web/20230203130927/https://remarkablewiki.com/tech/specs/rm1_specs). There's some [official docs from remarkable](https://developer.remarkable.com/documentation/software-stack) on their linux build, but hardware is closed. Still might get some good hints about using the i.MX7. eg - [remarkable/linux](https://github.com/remarkable/linux) - [remarkable/imx_usb_loader](https://github.com/reMarkable/imx_usb_loader) - [remarkable-uuuflash](https://github.com/ddvk/remarkable-uuuflash) - [remarkable/uboot](https://github.com/remarkable/uboot/) There's also a "libre" OS for remarkable called [parabola-rm](https://cdn.tahnok.ca/u/install-guide-latest.pdf)