highpost/tailscale-macos-vm — reverse-engineered prompt

Build me a small macOS project that makes it easy to create an Ubuntu development VM in OrbStack and join it to my Tailscale network.

I want simple shell scripts that handle the full flow. One script should save a Tailscale auth key from my clipboard into Apple Keychain. One should build and provision the OrbStack VM using a cloud init style config. One should start the VM, read the auth key from Keychain on the Mac side, pass it in safely, run Tailscale inside the VM, and turn on Tailscale SSH. One cleanup script should log the VM out of Tailscale, delete the OrbStack machine, and remove the saved key.

Please include a clear README for a normal Mac user. Explain the Tailscale ACL tag setup, the auth key settings, how to run each script, and how to connect afterward using Tailscale SSH or OrbStack local SSH. Look up current docs online if you need to.