It should be possible to coursify Linux/Programming tutorials in forums and blogs. That is. I wonder if you could just with some ?HTML code or plugin write a quiz. Meaning a question and a ”hidden” range of possible answers that the browser checks.
I don’t know how to make tutorial courseware but I think there should be open source software for this. Maybe a wordpress plugin could work.
The idea is to make the site interactive and fun. I think this could be done with user generated tutorials with some interaction.