This is a lecture that builds up your skills! It is not easy to find high-quality lectures in Busan, but watching Kim Young-han's lecture, I get the hope that I can grow into a good developer even in the provinces. The lecture design that gradually builds up one by one was the best. Even when he said, "Oh, this is out of scope," he briefly explained the part, and it was a very useful tip for me. Our company is a small company, so the developer's work is the entire app (front-end, back-end). In some cases, it starts with installing the server and OS. I'm embarrassed, but I don't have anything that I'm particularly good at. However, while listening to the lecture, I got the desire to study the server side a little harder. Please continue to provide good lectures in the future. I will also try hard to follow along. Thank you. Always stay healthy!