WireGuard is an encrypted point-to-point tunneling protocol, part of what most people think of as a 'VPN.' FreeBSD is a Unix-like operating system that powers everything from Cisco and Juniper routers to Netflix's network stack, and Macy had plenty of experience on its dev team, including work on multiple network drivers. Further Reading In-kernel WireGuard is on its way to FreeBSD and the pfSense routerAt first glance, Matthew Macy seemed like a perfectly reasonable choice to port WireGuard into the FreeBSD kernel.