Hello, this is Lee Do-won. I apologize for not being able to answer all your questions as you mentioned. When I prepare a lecture, I try to run it in various environments, but there are limits to responding to all of the students' environments or error situations. Also, we try to check and answer errors that cannot be reproduced on our side as much as possible, so there are some parts that are delayed in responding. Are you referring to the DiiD image you requested, the DinD image? Are you referring to a different image? All images used in the class were basically DinD images, and for students who said that they could not run on some Windows PCs, we provided additional videos in DooD format. https://www.inflearn.com/course/%EC%A0%A0%ED%82%A8%EC%8A%A4-ci-cd-%ED%8C%8C%EC%9D%B4%ED%94%84%EB%9D%BC%EC%9D%B8/unit/130047 If you have any additional questions or requests during the course, please leave a comment again. Thank you.