I think this is best described as a one-shot control plane, the single use address/key (same thing) is shared out of band, so it's far more minimal than the TS control plane.
The examples show the concrete use cases... Basically giving you the wiregaurd + DERP quality tunnel but as a one shot point to point cli tool. Which is a nice upgrade from the alternative "in a pinch" tools.
RE "how much tailscale" I guess it's the DERP bit + this minimal point to point control plane. Without which it's significantly more configuration to get the wiregaurd tunnel working, or impossible because of NAT, unless both machines are on the same ipv6 network.
TS basically sell the full control plane with Auth and ACL style management etc as their product so this doesn't really compete.
The examples show the concrete use cases... Basically giving you the wiregaurd + DERP quality tunnel but as a one shot point to point cli tool. Which is a nice upgrade from the alternative "in a pinch" tools.
RE "how much tailscale" I guess it's the DERP bit + this minimal point to point control plane. Without which it's significantly more configuration to get the wiregaurd tunnel working, or impossible because of NAT, unless both machines are on the same ipv6 network.
TS basically sell the full control plane with Auth and ACL style management etc as their product so this doesn't really compete.