[Unit]
Description=Set backlight to %i idle
Conflicts=physlock.service
PartOf=idle.target
Before=idle.target

[Service]
Type=oneshot
ExecStartPre=/usr/bin/brightnessctl --class=backlight --save
ExecStart=/usr/bin/brightnessctl --class=backlight set %i
ExecStopPost=/usr/bin/brightnessctl --class=backlight --restore
RemainAfterExit=yes

[Install]
WantedBy=idle.target