Hey NiLuGe, I've seen a new patch note on koreader page:
Kobo: Flag all the boards similar to the Libra 2 as unreliable (Clara 2E & Nia)
https://github.com/koreader/koreader/pull/9691
Does it mean that you have implemented a few tweaks for stability or does Libra 2 and all other devices sharing the same kernel become partially supportable and you guys decided to give up on them?