After not having personally touched any frontend code for a number of years, I recently found myself in the position of having to personally bootstrap an important side project - backend, frontend, design, and mobile - all on a miniscule budget.
The process she outlines so closely mirrored my own that I'm still not entirely convinced she didn't have a hidden camera in my office. This post would have easily saved me weeks of fumbling around, false starts, procrastinating, and looking around for the appropriate resources and frameworks. In my opinion my end product looks much more polished, but she was clearly just putting together a simple demo to support the text, and her design quality is easily sufficient to test out a minimum viable product. Of course, once you get some traction and have a budget to hire a designer, you should because design is sacrosanct blah, blah, blah, etc, etc.
But if you're a programmer on your own with no budget, just trying to get your idea out into the world and not embarrass yourself, this could be invaluable.