Use your Mesh Token
After the app installs, it asks for your private Mesh Token. Use the same token on every computer you want to connect.
Treat the token like a password. The install command does not save it in your Terminal history.
A simple private network
This service helps your computers find each other. Your private traffic stays between your computers.
Paste this command into a terminal. It picks the right version and checks the download before it changes your computer.
curl -fsSL https://introducer.colinknapp.com/install | sudo sh
Works on AMD64 and ARM64.