[khurs]

My advice to you:

Mark each course as beginner/intermediary/advanced and the required background knowledge assumed. As people have very different levels of experience.

Take some course in learning how to teach.

[acley]

I think you didn't go through a few courses. Many of those are actually better than whatever you can get from other places

[jimsojim]

I noticed the courses are tied to a language, any reason behind that design choice vs keeping it language agnostic and letting users choose their preferred language?