Can restic work “in reverse” so that I can backup my TrueNAS Core server to an external drive connected to my laptop?
restic ‐‐compression=auto --repo /mnt/EXTERNAL_DRIVE_CONNECTED_TO_DESKTOP --verbose backup USER@IP:/mnt/SERVER_BASE_DATASET
It does not have support for specifying such a path for the data set, no. You will have to mount the share from the server so that it is available as a local filesystem path, then use that path.
Thanks, would be practical if it did.