I’ve just set up Jellyfin on an Intel NUC with a Celeron J4025, 8GB ram and 1TB ssd and it works flawlessly, can handle at least 3 4k (hardware accelerated) transcodes (didn’t test with more). No tone mapping tho, its pretty slow. The thing cost me around 140 eur.

If you really want tone mapping and don’t have the budget/space for a dgpu I heard the Intel N100/N150 mini pcs (like you picked) are great. I would be a little worried about the ram tho.

I found a second hand box near me with Intel Celeron J4025 for 50eur. No disk and RAM (will buy myself). Would the processor be good enough? How is the price?