[Unit]
Description=Run my job every week
RefuseManualStart=no
RefuseManualStop=no

[Timer]
Persistent=true
#when it is true systemd stores when the timer was last run and when the machine boots up after a long time, it will automatically catch up onto this timer if it should have run in the meantime
OnCalendar=weekly
Unit=background-rotate.service

[Install]
WantedBy=timers.target