This process is derived from the official guide, but with some
tweaks to make the process smoother and produce an installation that both (1)
comes up automatically on boot and (2) survives system updates.
Installing Tailscale
Download the attached tailscale.sh and tailscaled.service files to your
Deck.
Copy the tailscaled.service file to /etc/systemd/system/.
Run sudo bash tailscale.sh to install Tailscale (or update the existing
installation).