Last I tried this, the Nvidia cli I stalker was easy peasy for my 1050ti.
However, I haven’t took a look at jellyfin, but the Intel quicksync encoder on the Intel chip on my home server did the same encoding tasks and was far less temperamental with plex than Nvidia was. Do you really need the GPU? If it’s just for video encoding I feel like you could skip it. If it’s for more esoteric stuff like running LLM then of course it’s a requirement.
Ubuntu server, some bash scripts, and a docker install. KISS