Looking for an ebook reader (hardware) which doesn't hold a proprietary OS
I wanna buy an ebook reader but i don't want any amazon or other companies shit in there, just something i can connect to my pc, pass ebooks in different formats into it and read.
I've looked into this in the past and settled on Kobo. You can disable the telemetry and never use the the Rakuten account part and have a very good ereader... And you can install the open source KOReader software.
+1 on this. Kobos actually use Linux under the hood. And although the default UI is proprietary, it's super easy to install KOReader.
You don't even need to hack into it some custom firmware, just a sideloader, which normally doesn't break even if you actually updated the base firmware.
Here the official tutorial on how to do it: https://github.com/koreader/koreader/wiki/Installation-on-Kobo-devices
Kobo readers are really neat, I've been using them for over a decade and I don't remember ever using a Rakuten account or even going online with them for anything but software updates or connecting to my local library system (which Kindle can't do). I use Calibre on the desktop to manage, convert and load my reader and that's it.