Hi, I'm the author of the post. (My friend pointed out that someone posted a link on HN to my Sushi Go Round bot tutorial.)

I have a link to the post you're talking about in the first paragraph of my post (the same that you link to.) That is indeed the source of inspiration for my tutorial (which I did a couple weeks ago from scratch). I use the PyAutoGUI module instead to make it a lot easier to control the mouse/do screenshots.

Basically, I wanted to create a much easier/shorter version of Chris's tutorial. Complete thanks to him for doing his tutorial though.