Optimal drive for Jellyfin

[cromnom]

I am rebuilding my media server with parts from my old gaming/work PC. My motherboard has one PCIE 3.0 NVME port which I purchased a new NVME card for. The
other spare drives I have are all SATA SSDs, aside from the HDDs I use for my library.

My Question is where should I put Jellyfin and my OS (windows 11) for optimal performance? OS on SSD and JF on NVME? Or the reverse? Or Maybe I should have both on the NVME?

Specs of my system :-
Mobo - X99-A II
CPU - i7 5820k
GPU - GTX1070
RAM - 64Gb

Appreciate any advice.

[toytown]

Both the OS/JF should be on the NVMe it will have superior transfer rates and IOPS compared to the SSD. I would keep your library on the HDDs as you mentioned.