I haven't completed the course yet, but I'm leaving a review. Rather than thinking "I need to create a portfolio through this course," I think it would be better to take this course with the mindset of "How does the overall flow of a project using Supabase and React work?" - focusing on understanding the big picture. The quality of the course is excellent. I took a Supabase course before this one, but unlike that course, this one explains things in incredibly detailed depth - it's on a completely different level. Of course, rather than just taking this course and thinking "Oh, so this is how Supabase works," it's better to use this course to establish a very basic conceptual framework, then study further through Supabase's official documentation - you'll understand much better than before. This is possible because Lee Jung-hwan explains things so well and makes it easier to understand with visual materials. That's why I really recommend taking this course. Also, Zustand and React Query lectures are included in this course, and they're amazing... They're very easy to understand. This course seems to be very helpful when studying on your own later.