Sync both server snapshots with what the live machines run, and keep their backup tooling

server/vps/server-backup.service

@@ -0,0 +1,22 @@
+[Unit]
+Description=Back up ~/Server to the home server
+Documentation=file:///home/gib/Server/RESTORE.md
+After=network-online.target
+Wants=network-online.target
+# The backup reads podman-managed data and shells into containers for dumps.
+RequiresMountsFor=/home/gib/Media
+
+[Service]
+Type=oneshot
+ExecStart=%h/Server/backup
+# A stalled rsync should fail loudly, not hang until the next timer fires.
+TimeoutStartSec=6h
+# This box is IO-bound before it is CPU-bound (~18%% avg60 pressure), so stay
+# out of the way of the containers. best-effort/7 rather than idle, which can
+# starve the transfer outright when the volume is busy.
+Nice=10
+IOSchedulingClass=best-effort
+IOSchedulingPriority=7
+
+[Install]
+WantedBy=default.target