Hello Junhyeon Park, Thank you so much for your valuable review. I'm delighted to hear that you've followed up on the Redis course with this Docker course. As you mentioned, many people used to think of Docker as being strictly for infrastructure specialists, but nowadays, it has become a truly powerful tool for developers—from reproducing environments and local experimentation to understanding deployment. Since I designed this course for those who want to quickly organize basic Docker concepts and hands-on practice, I'm even more grateful that my intention came through clearly. I will continue to update the content with practical material that you can apply directly in the field.