[Unit]
Description=Refresh the agenda render cache every 5 minutes

[Timer]
# OnCalendar rather than OnUnitActiveSec, because Persistent= only has an
# effect on calendar timers (systemd.timer(5)). A monotonic schedule silently
# ignores it, so a machine that slept through several intervals would come back
# to a stale file with nothing to trigger a catch-up -- and the surface reading
# it cannot tell stale from correct.
OnCalendar=*:0/5
Persistent=true
# A cold boot should not wait for the next wall-clock slot.
OnBootSec=1min
AccuracySec=30s

[Install]
WantedBy=timers.target