@inthehands indeed! I do want to get back to teaching, and in any educational setting I find myself thinking "I know of a better way to do this..."
I took a compilers course recently, and it was all bog-standard lectures and teaching out of the textbook: each lecture was roughly just "section X of the text, converted from printed textbook form into slides, which the instructor narrates through".) Nice enough, but it could have been so much better...