Tailscale and Zerotier are in roughly the same business: mesh VPN. And you might use this because you don't already have Zerotier setup, and are trying to deter

Tailscale and Zerotier are in roughly the same business: mesh VPN. And you might use this because you don't already have Zerotier setup, and are trying to determine how to use this. And you might decide to use this instead of Zerotier because you don't trust the protocol behind Zerotier, being some weird custom thing, but Tailscale is just a fancy management layer over Wireguard.