Comment by fvrther

Kobo are giving you root access with telnet from the start. You can flash modded firmwares, change the backend servers to phone your own calibre-web instance, install ssh, koreader and even a tailscale vpn on it. They even have UART pins labelled on their board. These are amazing devices to play with. And they read pretty much everything you throw on their storage: epub, cbz, cbr, pdf..