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backup-user/restic-backup.timer

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+[Unit]
+Description=Run restic user backup daily at 02:00
+
+[Timer]
+OnCalendar=*-*-* 02:00:00
+# Do NOT set Persistent=true — boot timer handles the catch-up for personal machines
+RandomizedDelaySec=600
+
+[Install]
+WantedBy=timers.target