When I looked at the community, there were many posts saying that the code didn't work and many people gave up. Due to the nature of the IT field that is constantly updated, there were many cases where what worked in the old version didn't work in the current version. By finding and applying each of those, I think I was able to create my own code rather than just typing. I've watched many lectures before, but I definitely don't think this lecture is of free lecture quality! It was so informative and enjoyable. Thank you for distributing such a great lecture for free.