I am an aspiring developer who moved from Java Spring to Coping. There were many parts that I did not understand grammatically while adapting to Coping, but I studied while refactoring the project code while watching this lecture. It is honestly difficult to answer with certainty that you can apply Kotlin Spring right away after watching this lecture, but it is true that Kotlin development has become much easier thanks to this lecture. And currently, I am studying more in-depth content about Kotlin while applying the hexagonal architecture. I would like to express my gratitude to the instructor who created this lecture that made this achievement possible.