Host disks over NBD, pull remote nbd:// targets, or convert a local /dev disk or file to qcow2/raw under /mnt. Settings → Network Services → NBD. Read-only Host by default; prefer private bind. While Host is up a beacon may listen on TCP 10808 (private clients only; not the Unraid login). Pull → Scan network is a button (POST): you pick which private LAN(s) to probe; default is plugin beacons on 10808, optional NBD ports. Status lists plugin and external qemu-img jobs.