Thank you for the simple lecture that fits the purpose of simple development. However, since you don't have much experience with lectures, if you run the code written in the terminal right away or edit the code in the editor and upload it right away, you will be confused for a moment. Of course, it's not a big problem because you can replay it, but if you have the time to wait a few seconds, I think the lecture will feel much more refined. Thank you for your hard work.