TURN DOWN FOR WHAT MAC ONLY SORRY

turn-down.sh

#!/bin/bash

VOL=$(osascript -e "output volume of (get volume settings)")
NEWVOL=0

while true
do
    if (($VOL == $NEWVOL)); then
        $(osascript -e "set volume output volume 100")
        echo $(osascript -e "output volume of (get volume settings)")
        $(afplay /Users/skullum/Desktop/just_what.mp3)
    fi
    VOL=$(osascript -e "output volume of (get volume settings)")
done

run as a background process yo
./turn-down.sh &