[Newbie] N100 + TrueNAS Hardware Encoding problem

[FlyYF]

You could also try switching to a plain Linux distro (Ubuntu, is my recommendation) and install Jellyfin directly on Linux.  So you don't have to deal with all the TrueNAS UI non-sense.

Yes but I need the NAS part to storage data tho. Had to run some commands for jellyfin's container

Anyway, the problem is done, as you thought, that was a permission problem. Now the container is running and using the iGPU.
Can say I'm really satisfied of N100's performances.