Is it permissible to earn money by collaborating with Udemy?

"Udemy" is an educational website that offers free or paid courses in various fields. It may contain forbidden things such as pictures of women or teaching music. If cooperation means offering permissible educational courses through the website, then there is no harm in that. The presence of forbidden things does not harm you as long as your work is permissible. It is permissible for you to earn money by charging for courses, and for the website to take its percentage for its services. There is no harm in the fee being a percentage, as stated in the fatwas of the Permanent Committee. However, if cooperation means something else, it must be clarified to rule on it.