Immich - NFS storage?

Hi there, I am setting up the immich as per your guide on youtube and was wondering if it would be wiser to setup using an NFS storage pool for the photos /video instead of inside the docker. Maybe that’s what you meant with the host/container when you talked about the volume if you did, I guess I missed that subtle instruction.

In my understanding, it would be wise to have the photos backed up on a NAS (say on truenas) and then use immich to process and display the media through an NFS directory. What’s the opinion or is that what you did?