content: #!/usr/bin/osascript
  
  tell application "System Events"
  	if not (exists file "/usr/local/etc/mac-mute-startup-chime.already-muted") then
  		set volume without output muted
          do shell script "rm -f /usr/local/etc/mac-mute-startup-chime.already-muted"
  	end if
  end tell