> So, to say, I usually pick Quality and Velocity.

Velocity is what you choose when you have a runway. The most successful open source projects like Emacs and GNU Make have been sitting around for about 40 years now, being slowly and steadily maintained by their owners. I've been working on a C library of my own for the past 6 years and it's only started to gain traction in recent months. If I was doing it as a startup my project would have been laid to rest in a charnel house long ago. But since it's open source, the only thing it's really cost me is time.