Comment by ThinkBeat

You dont.

Working: You make a living getting a job where people pay you to do something.

Volunteering Donating your time to do something that others may find interesting or appreciate. Yoo do it because you can and or you want to and or feel it as a duty or calling.

If you are serving meals to the homeless, it is a really bad way to get paid.

These days the common approach seems to put out some decent project. if you get traction and people get involved and like it, you create a pro version that is not open source, then you chance the open source license of the "core / basic" version and then profit.