I have to admit that I did not follow the link, even for youtube stuff I rarely will follow a link from a programming forum.
There is no such thing as not prototyping, rapid prototyping is a subjective term at best, because you either make a burn project to test your proof of concepts out, or you try to do it live on the first pass. When you do that first pass gold development scheme, you are still prototyping: you write the disposable code and hope it works because you're calling the gold code, but in reality, you're probably going to have to rewrite that code at least 1 more time to optimize it in a reasonable fashion. As you go through the project you inevitably little caveats to the stated objective that were not stated or that nobody knew to include. So what you bring to market is the development copy, that has been updated many times and it is essentially a patchwork that is sub-optimal and perceived as a time-saver, but in actuality has taken longer to do less with more resources.
Out on HF and heard nobody, but didn't call CQ? Nobody heard you either. 73 de N7GH
Sometimes you feel like a nut. Sometimes you feel like a tiny ad.
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop