I work full time building open source products. My company is kind enough to sponsor me and my team. We work on a lot of other projects (many of them using our

I work full time building open source products. My company is kind enough to sponsor me and my team. We work on a lot of other projects (many of them using our open source work) so the revenue comes from elsewhere. If you just want to focus on building open source software and not worry too much about the business side of things. I recommend working for companies where who embrace this culture.