I just went straight to the main course. This is the best practical Flutter course. I feel like I learned only the core of everything for developing network communication apps without any unnecessary details. If you are new to Flutter, you should first take the instructor's Flutter beginner course or watch it while understanding the grammar or widget concepts through Oh Jun-seok's Flutter survival coding. I would like to rate it as a shortcut that does not waste time for beginners and a course that gives wings to existing developers. I hope you will continue to give good lectures. Thank you very much.