This is just food for thought. As an income generating idea for Linux software or projects. Like the Ubuntu MATE or the Linux Mint distribution I’m currently running. I thought why not turn some of the documentation to an interactive tutorial. Then to earn some money why not make an Android application of it. The application “Learn Python” from SoloLearn is a perfect example of how one could do this. So the idea is very simple. Since people behind these distributions and other Linux software make documentation. They could also make an Interactive Tutorial Application for Android and then maybe charge a little money for that. I’m pretty sure this is an easier way to get funding rather then by donations only.
One can also speculate if interactive information or courses will take over from reading a lot of documentation. I guess this could be because memory retention is better that way.