Hi @badomako ! Welcome to the community. This page is full of information about teaching on Udemy.
Our minimum requirements for a course is that it contains at least 30 minutes of video content contained within at least 5 lectures.
Here are some great resources regarding course creation:
Course Quality Checklist
Teaching Center
Udemy Insights Courses
Wistia Course Creation Compilation
I really hope this information helps!
Eliana Cerna