[Unit] Description=Run Periodic System Maintenance every hour Requires=periodic-system-maintenance.service [Timer] # Run every hour OnCalendar=hourly # Run on system startup (5 minutes after boot) OnBootSec=5min # Add randomization to prevent all systems from running simultaneously RandomizedDelaySec=300 # Ensure timer persists across reboots Persistent=true [Install] WantedBy=timers.target