This could be a part of GitHub. Imagine there was a '$' button beside the star button, and each time you clicked it you gave one dollar to the maintainer of the

This could be a part of GitHub. Imagine there was a '$' button beside the star button, and each time you clicked it you gave one dollar to the maintainer of the repo, with a counter beside it. The '$ counter' would only be visible to the user and the repo maintainers. GitHub is the de facto hub of open source/free software, and if it was as easy to donate to a repo as it is to star it, I imagine more people would do it.