[Unit]
Description=WD idle3 timer
After=basic.target
DefaultDependencies=no
Conflicts=shutdown.target
IgnoreOnIsolate=yes

[Service]
Type=oneshot
ExecStart=/usr/bin/true
ExecStop=/usr/syno/lib/systemd/scripts/WDidle3Dis.sh stop
RemainAfterExit=yes

[X-Synology]