When I started installing and operating GITLAB CE (+ runner), there weren't many related materials or lectures on actual use. It was very helpful, such as getting hints on how to use it directly or how to solve problems I encountered. There were many things like, "Developers just need to be good at development, so why should they worry about infrastructure?" or, on the contrary, "Why should they learn when the infrastructure team will take care of it?" However, I continued to learn with the mindset that developers should know many aspects of the operation of the system they create. At the beginning and the end of the lecture, I was impressed by the development that, in the end, many things that come up while creating, operating, maintaining, and improving a service should be based on 'understanding each other's technology or field'. It wasn't easy because it was a challenge in a new field, but the content was good, the motivation was good, and the lecture was informative, so I'm giving it a million likes. I'll review it again and apply it to the system. ~