backup-maintenance.timer

   1 [Unit]
   2 Description=Backup maintenance with restic
   3 Requires=backup-maintenance.service
   4
   5 [Timer]
   6 Unit=backup-maintenance.service
   7 OnCalendar=daily
   8 Persistent=true
   9 RandomizedDelaySec=900
  10
  11 [Install]
  12 WantedBy=timers.target