[Unit]
Description=Monthly GhostMirror update timer (with Timeshift pre-backup)
Documentation=https://github.com/vbextreme/ghostmirror

[Timer]
# 1st of every month at 03:00 local time
OnCalendar=*-*-01 03:00:00
# Catch up if the machine was off at the scheduled time
Persistent=true
# Spread load slightly so mirror servers aren't hit at exactly 03:00
RandomizedDelaySec=15min
Unit=ghostmirror-monthly.service

[Install]
WantedBy=timers.target