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

server/home/backup

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Manual trigger for the daily backup.
+#
+# The real script lives at /usr/local/sbin/server-backup and runs as ROOT via
+# server-backup.service. It is kept out of ~/Server on purpose: ~/Server is
+# user-writable, and a root-executed script sitting in a user-writable directory
+# is an obvious footgun. Run it through systemd so a manual run behaves exactly
+# like the nightly one (same environment, same logging, same lock).
+#
+#   status:  systemctl status server-backup.service
+#   log:     tail -f ~/Server/logs/backup.log
+#   timer:   systemctl list-timers server-backup.timer
+#   restore: see ~/Server/RESTORE.md
+exec sudo systemctl start --wait server-backup.service