Author's reply

I'd like to see more of this kind of thing, there are too many popular and fundamental projects that have no sustainable funding model. If the developer isn't making a living off their open source work then they are really operating as a tax on some other professional work and are having to make unnecessary personal sacrifice to make it all work. Even with their sacrifice it's often not enough.

A developer shouldn't have to choose between an open source license and making a living.