They do actually use Git a little. Both the OpenBSD & the Portable LibreSSL source code have mirrors on Github that are updated in sync with the CVS repository.

They do actually use Git a little. Both the OpenBSD & the Portable LibreSSL source code have mirrors on Github that are updated in sync with the CVS repository. Whether that's because there's a demand to host the code on Github as well, or because they like Git, or a little of both is something I wouldn't presume to know.