Hi,
Normally that site is for paying subscribers only, but in order to let people catch up with the material and join the course in the middle I provide free access to these videos during the course. As we are going to have another session (or two) next week the material is still available there free of charge. Only registration is needed.
I have scheduled a "Web development using Flask" course for next week. It will work in the same way, the people who join the live presentations will have the opportunity to ask questions both during the presentation after it. The videos will be uploaded to the Code Maven Academy.
https://akademia.code-maven.com/
regards
Gabor