@levelsio also published a book on the subject recently.
Do you happen to know the title of the book?
Re:I wandered off and built an IDE
by slice-beans on Friday April 06, 2018 @11:50AM
(#16774170)
https://makebook.io/
It's pretty good so far
For example: https://www.youtube.com/watch?v=6reLWfFNer0