In short, this is the best Docker introductory course. I haven't used Docker for over a year, but I didn't have a chance to properly learn it. I recently used it briefly while deploying a simple project and realized that it is a very useful technology. So I was thinking about learning it properly, and I found this course and took it. I was not interested in studying development these days and was in a rut, but after taking this course, I became interested in studying development again. In particular, I only heard about CI, but when I actually tried it, I felt like I experienced a new world. There were a lot of things to pay attention to as the course progressed, so it was a little difficult, but overall, the voice and pronunciation were good, and the explanations were just right for what I needed, so I was able to take the course comfortably. Lastly, thank you so much for making such a great course. I'm looking forward to the Kubernetes course as well.