I mentioned putting a link to the video on the Home Brew Audio YouTube Channel here in the notes. Here that is: https://youtu.be/kYkbArXHKCE

The Limiter tool changed in recent version of Audacity and it looks totally different from the video. So much so that you cannot follow the video's instructions.

Fear not though! You can still find the old Limiter in newer versions of Audacity by picking "Legacy Limiter" instead of just "Limiter.