Author here. I would like to add some background info. I started to work on this book with a different aim than it ended up pursuing. I originally wanted to train people to become lead frontend developers, but the fist lesson grew into this whole material. I wanted to help answer the question: How to choose the right tools for a given project from a business perspective. I never found any comprehensive guide in this topic. I decided to tackle it and it became much wider in scope then I imagined. Nonetheless I believe it's a valuable topic to explore and this is my attempt on it. It's in early access still around 40% away from completion. I'm really interested in your thoughts!