I'm a developer who works on server development at Toss and recently created a MySQL course with Hong. The charming Hong has once again persuaded a Kakao friend to create a workflow course!! The only workflow I knew was Airflow, but this was the first time I saw content that could be implemented at the client level using open source. From my perspective, it was quite a beneficial topic, so I found it interesting. Please show a lot of interest in this course as well, and please show a lot of interest in the next course too. I'll work with Hong to create good topics.