The fear of having to stand in front of a bunch of people and not know the answer. Motivate you. Fun. Teaching teaching is always a great way to kind of learn these technologies a little bit deeper as well. Then you definitely learn it for real when you go out to teach it. So I wanted to start with just maybe a story how you've chosen some tech stack or some database or some new framework. A lot of leeway and the scope there, but whoever wants to jump in, just give us a story that you've gone down that path recently.