I bought the lecture a while ago.. I put it off with the excuse that I was busy, but I'm watching it again now. First of all, I'm infinitely grateful for the free update from Spring Boot version 2 to version 3. This time, an urgent project came up at my company, so I made a REST API server, and I'm listening to it with interest, comparing it to what I made and thinking that the server I made was lacking in this and that there are also things like this. However, I regret that I can't use Spring Boot version 3 because the current project environment is a closed network structure that doesn't allow external file imports. It's a shame that the previous version 2 lecture seems to have disappeared.. I'll try to console myself with the MicroService building lecture. The Chuseok holiday is coming to an end.. I hope you finish Chuseok well, even though it's late. Thank you for the great lecture.