Tailscale is a zero-friction VPN. You just install it on every machine, login on every machine and you get your own private network that just works. When I clic

Tailscale is a zero-friction VPN. You just install it on every machine, login on every machine and you get your own private network that just works. When I click on one of the machines in the admin console, I get a list of things it takes care of: "Varies" (Whether the machine is behind a difficult NAT that varies the machine’s IP address depending on the destination), Hairpinning, IPv6, UDP, UPnP, PCP, NAT-PMP. I don't even know what some of them mean, I thought PCP was something to get high on. I run it on every device I own, plus a few at my parents' place. This way I can access my PC and my NAS from my phone, and my NAS from my PC, even though the NAS is behind my home router and the PC and the phone can be connected to a bunch of different networks.