[watwut]

Most open source developers are paid for it. There are some people who do some of open source by the evenings as a hobby, but those tend to have jobs too. There are also hobby musicians, or musicians for whom music pays only little, but their reach is smaller.

There are not that many open source projects for non tech users - most and best open source centers in tools for techies.

There is a lot of rhetorics and myth making about open source, but majority of developers does not do open source nor is required to and having open source project is not that much of advantage when looking for job.