Try Emby. Hardware acceleration works out of the box. It is paid though but I’m very happy with it for past few years.

I have similar setup but without PROXMOX. I tried it but never saw the benefit. Using ZFS for bitrot protection.

Syncthing isnt a backup. Its just a synchronisation tool. If you delete a file it gets deleted everywhere.

What’s the alternative?

Things are easy or free. Rarely both. :) it’s well worth learning OMV. If you have any questions I’ll try to help!

I run OMV baremetal for last few years. I really like it. I did try TrueNAS and found it too convoluted.

Nextcloud is a totally different beast that would run on top of either.

OMV allows you to use ZFS as well if you want (I do) but also the flexibility to use other raid systems.

I just wish they’d left in portainer as default. No point reinventing the docker wheel…