I need advice

I already graduated college and there some courses at other universities that look fascinating that I would be fascinated in taking abd learn about.

For example one class is Understanding Video Games from the University of Alberta.

I would pay to learn more about this topic.

What do you do if an international student (or a student from a different college) who was interested in taking and or auditing the course or would be interested in just the notes maybe to learn the material, who would pay for the course as well, and are willing to take your course.

What do you as a professor do with students who are interested in courses from a different university?

What should I do think I should do?

I really need advice on this. Thank you professors.