MidnightBSD, a FreeBSD-based desktop operating system, has quietly updated its README to reflect a new geographic restriction. The project has added a clause that bars residents of any country, state, or territory with OS-level age verification mandates from using MidnightBSD
It applies to websites not hosted in Australia, that may have Australians visiting the site via VPN
Enforcement is going to be interesting to watch
There are already services that catalogue VPN sources for webmasters to implement block lists