I'm happy to announce that my book and my video course are now available on this site! Both the book and the course were available separately for some time now on various platforms but now they are removed from everywhere else. This allows me to offer them in a better format and also to update the contents easier.
Both the book and the course are complete. I have plans to update various parts such as adding click-to-try examples to chapters and to refactor the videos a bit, which will come later. That's why I consider it "content finished" instead of "completed". As usual, buying the book includes all future updates as well.