I keep my Docker app data on ZFS, with sanoid snapshots every 15 minutes and syncoid replicating hourly between two boxes, so plain file backup is mostly covered by the filesystem for me. Where a tool like this would still earn a spot is the database side, since a snapshot of a running Postgres isn’t the same thing as a proper dump. Does the Restic snapshot mode let you restore a single directory to a different path, so you can test a restore without touching the live copy?