I have been following Captain Pangyo's lectures since I was a job seeker and now I am a third-year developer. My company is now using the Composition API and migrating to Vue3, so it was helpful. Thank you. It's a personal desire, but I wish you would make an advanced lecture. The most difficult thing while using Vue was designing components in line with the direction Vue is aiming for, but when there were too many props and emits, it was too hard to understand in one component, and there were times when I ended up using a lot of refs and watches. I am curious about how you design applications to fit the characteristics of Vue in very complex applications. I also want to learn about how you develop for maintainability, not just Vue!! (ex) How do you design and develop when a large abstract action is divided into many cases in detail and the methods for requesting and processing data are all different..) It was helpful this time too. Thank you for the lecture.