[Unit]
Description=Ekklesia Classroom clean shutdown
Documentation=file:///usr/local/bin/classroom-shutdown
Before=shutdown.target reboot.target halt.target

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/bin/true
ExecStop=/usr/local/bin/classroom-shutdown
TimeoutStopSec=20

[Install]
WantedBy=multi-user.target