As a front-end developer in the field, I had difficulty developing back-end, and I wanted to try deployment, but I couldn't start because of a vague fear. However, through this lecture, I was able to deploy it myself and work on the back-end, so it was really good! For those who are taking the lecture, when taking the redux and saga class, if you are somewhat familiar with the pattern, it would be good to stop before working on redux and saga and work on redux, saga, and back-end router in the front before taking the lecture^^!