This class doesn't result in completing a simple project when you finish the entire course, unlike what I expected. And the most important point is that I feel there are many parts that skip around intermittently. For example, there was no mention of downloading anything, but suddenly postgres usage appeared, so I had to stop the lecture to figure out installation methods, fix errors when they occurred,, Suddenly seeing dbeaver opening and firing query statements to create tables, I hurriedly downloaded dbeaver again The lecture also has old videos mixed in, so even when I try using the exact syntax shown in the video, I can't make progress because errors occur due to different versions of Python and airflow, which I can't resolve. Of course, the Python version and airflow version are written in the example files you provided, but I'm not sure what the problem is. Even as a major student, I find it slightly overwhelming, so I wonder how non-major students would feel. For now, I'll listen to the lecture until the end and revise my course review.