I've been having a look at the live coding for a simple web game in Clojure (The parens of the dead -- https://tinyurl.com/yxpd2xju).

The series is an amazing exercise of effective and efficient programming. I wish the creator would have used magit along the way to have a look at the git workflow as well.

The creator is also known for his Emacs Rocks series (http://emacsrocks.com)