I was really impressed by the first lecture, so I immediately enrolled. I concentrated quickly and finished it without taking a break. I think it's a great course where you can learn a lot, just like the first lecture. Personally, I think this is one of the best Kotlin courses available. From simple server development to various encryptions, I think these are deep topics that are not easy to learn elsewhere. It was such a great course that I want to keep it to myself and hide it. Thank you.