Finally, I've completed one cycle of the Spring roadmap!! Now, I have some time left to study hard and learn. The parts that I personally enjoyed while listening to the Spring Boot lecture were the process of downloading Tomcat and following the servlet initialization process and the monitoring part!! While studying Spring, Tomcat often appeared and keywords such as external server and internal server made me want to download an external Tomcat and follow the old Spring method, so it was nice to be able to look at the process with Younghan!! I was also curious about what tools are used and how to do the monitoring part in practice. Parts that I have not yet experienced, such as using external settings, are not clear, but when I have to use them someday, I will understand them better if I review them again. (I didn't understand the Spring core lecture at first, but I registered and used a lot of beans while following the Spring roadmap, so I think I understood them much better when I reviewed them later!) I will wait for Younghan's next lecture while reviewing the Spring lecture and studying other things (DB, deployment, etc.)!!! Thank you so much for the great lectures!!