Every single minute was such a valuable lecture. This is an essential lecture for vibe coding beginners. The process of creating login/signup/payment features was excellent. No matter what you build, these are necessary parts for monetization, so I'm satisfied that I could learn them. And I was able to learn how to solve problems when errors occur, as well as developer know-how for using vibe coding, including detailed design modification methods, cursor rule utilization tips, and methods for creating multiple designs. And it wasn't just about cursor usage techniques, but also the guidance on defining problems and writing PRDs to derive ideas before developing a service, making development more systematic and smooth - that part was really great too. While this lecture couldn't cover everything, I feel like I can build my skills using what I learned in this lecture as a foundation.