I Personally use kobo but i have used Thalia or Hugendubel in the past aa well. I think you can use nearly every bookstore and transfer them with calibre. But sometimes you’ll get a asc(?) file instead of a epub and then use some software to “convert” it and maybe remove the drm

Just seen this post (have not looked into it) https://lemm.ee/pictrs/image/8842cd4a-dc84-4391-b2ab-bbec8d3a6860.jpeg

While i agree with you that a custom os would be really nice, i think the term jailbreak is appropriate since jailbreaking other things like an iphone is also for installing other software not from the manufacturer. But I’m no expert…

Yeah a custom os would be really nice. I’ve seen you could install alpine but that also doesn’t relace the stock os

Im definitely not going to install an Amazon or adobe software on my Pc, dont even know if it works on Linux🙈

But not all kindles git this version right? My old one didn’t update And of course i wouldn’t buy a new one but ysed ones are cheap…

Amazon disabled the the possibility to download the books you bougth onto your pc and sometimes they change or delete books wich will change the books on your kindle. In the yt video linked the person says the changed for example the cover of books to advertise a new show based on the book.

I’ve done the same (except the 🏴‍☠️) but after reading the the koreader docs i found it gives you just so much more. For example i can see my calibre library from koreader and download any book i own withiut using my pc. And because ive it on an server i can do it from everywhere.