Theo mentions anoncvs. Remember, there was no Github in 1996. Not even SourceForge. Source code was passed around via tarballs, and you couldn’t look at individual commits without an account on the development server hosting the repository. OpenBSD developed the first anonymous access repository for CVS—the desire to do this is what the “Open” in “OpenBSD” refers to.
http://www.openbsd.org/papers/anoncvs-paper.pdf