In my case, I didn't know much about CI before I got a job. After I got a job, I learned about CI and started studying it. I think it would be good for those who didn't know much about Docker and CI tools to learn about them. Although it's the beginning of the lecture, the teacher explained it in an easy-to-understand way with diagrams, so it was easy to understand. I'm personally making a toy project, and I'll use Docker and CI tools to build and deploy both the backend and the frontend. Thank you so much for the great lecture ^^