Toggle 'background sounds' in macOS

toggle-bg-sounds.zsh

#!/usr/bin/env zsh

if [ -n "$1" ]; then
  if [ "$1" -eq "1" ]; then
    defaults write com.apple.ComfortSounds comfortSoundsEnabled -bool true
  else
    defaults write com.apple.ComfortSounds comfortSoundsEnabled -bool false
  fi
  # TODO: don't killall if no changes are made (it stutters)
else
  # toggle
  if [[ $(defaults read com.apple.ComfortSounds comfortSoundsEnabled) -eq 1 ]]; then
    defaults write com.apple.ComfortSounds comfortSoundsEnabled -bool false
  else
    defaults write com.apple.ComfortSounds comfortSoundsEnabled -bool true
  fi
fi

killall heard > /dev/null
launchctl kickstart gui/$(id -u)/com.apple.accessibility.heard