Even though I listened to many lectures, they were too difficult, so I got stuck in the middle and gave up a lot because I couldn't find a solution. This time, I listened to the lecture with the determination to quit in the middle, but after listening to it for a day, I got a general understanding of the ecosystem of how CI CD programs work, and I had fun studying while deploying them myself. I got the motivation to study more deeply. Thank you for the great lecture :D