> it's an open device.

non-obvious but you just use it like a usb device ereader when you receive it:

  - connect to computer with usb-c
  - mount as usb drive
  - edit .kobo/Kobo/Kobo eReader.conf adding SideloadedMode=true
  - remove .kobo/KoboReader.sqlite
  - reboot, then just use kobo as usb drive from then on, no account necessary

got one and use it more than my remarkable because it has a backlight for indoors (in addition to e-ink for outdoors)