βIn economics, a "public good" refers to anything that is both non-excludable and non-rivalrous, that is, people can't be barred access, and one person's use doesn't degrade another's.
Clean air is an example of a naturally occurring public good, while the electric grid is a public good created by people.
Open source code, which supports millions of companies and independent developers, is often thought of this way.
The cypherpunks considered privacy itself as a kind of public good.
Gitcoin started off focusing on Digital Public Goods (like Open Source software) but we have now expanded into real-life Public Goods.