There are 2 major ways. The 1st is donations. If enough people like your product enough then somebody will give you a little bit of money to keep making more.
The 2nd and more common way is to make some support stuff that is not open source that ties in to your open source product. So you might produce an open source operating system that is someone hard to use, and then produce a for profit visual interface for that operating system.
Latest Answers