virtualbox.org

I Am very happy with the Virtualbox software. Because of its open-source and free. Secondly, it supports most of the popular operating systems. However, as I have examined. There are still some nonfamous operating systems. that Virtualbox does not support. So, I wondered, how about to support such OSes too.

Such as? Also, support in what sense? I.e. as a host, as a guest? And how do you propose to fund development?

"Non-famous" does not sound promising. It sounds very close to "no commercial incentive".