Little info about this. Appears to be a Russian “open” style e-Ink device, that allows the loading of whatever one desires onto it, including DOOM…

https://www.youtube.com/watch?v=0apFspOlK10

External peripherals are supported with USB OTG.

A full Linux conversion of the reMarkable into a proper laptop. No embedded Wi-Fi due to “binary blobs”, which hopefully can be rectified. X11 is optimized, applications are included, power management is available, and so on. In essence, a complete conversion to an e-Ink laptop.

https://remarkablewiki.com/ (related wiki)

https://github.com/reHackable (related project grp)

http://www.davisr.me/projects/parabola-rm/

http://www.davisr.me/projects/remarkable-microsd/ (useful addition)