That’s high praise, James. Thanks!
You can see the code scattered in formatted boxes throughout the article. Unfortunately, I don’t have it all consolidated in a repo/gist.

Perhaps you can check out keras-rl for more examples. You can also check this out: https://towardsdatascience.com/deepmind-quietly-open-sourced-three-new-impressive-reinforcement-learning-frameworks-f99443910b16

Cheers and happy learning!