It's been about 3 years since the lecture came out, so there are some difficulties in having to update it manually, but it seems difficult to find a lecture that covers this much content so systematically anywhere. In addition, most of the errors I encountered were often resolved through the community. It was not an easy learning experience as it was my first time trying MSA, but thanks to this lecture, I gained confidence that I can make my toy project more expandable. Thank you.