Here's an example of how to build a simple Alpine Linux container using Apple's containerization CLI. It also demonstrates how to connect to the container through Tailscale SSH using a Tailscale auth key stored in Apple Keychain.

For example, I can create a container on my MacBook to run an application. A colleague in my Tailnet can then connect to this container to interact with that application from a coffeeshop or airliner while not exposing the rest of my MacBook.