How to Display content dynamical in e learning website in flask

I am beginner in web development. I am working on a big project that is e learning website in flask like geeksforgeeks https://www.geeksforgeeks.org/. And I have a lot of content to show on my website, the content is paragraph, images, codes and videos. I want to server courses to users or visitors dynamically. But I have no idea how to serve all of this. I think CMS would be fine to do all this. But the problem is that I don't know how to user cms with flask. I requested you to please take a time and explain me in detail how to solve this problem. I hope you understand what I want to say.