Packages are available for x86 and ARM CPUs, in both 32-bit and 64-bit variants.
Add Tailscale’s package signing key and repository:
curl -fsSL https://pkgs.tailscale.com/stable/debian/bullseye.noarmor.gpg | sudo tee /usr/share/keyrings/tailscale-archive-keyring.gpg >/dev/null
curl -fsSL https://pkgs.tailscale.com/stable/debian/bullseye.tailscale-keyring.list | sudo tee /etc/apt/sources.list.d/tailscale.list
Install Tailscale:
sudo apt-get update
sudo apt-get install tailscale
Connect your machine to your Tailscale network and authenticate in your browser:
sudo tailscale up
You’re connected! You can find your Tailscale IPv4 address by running:
tailscale ip -4
If the device you added is a server or remotely-accessed device, you may want to consider disabling key expiry to prevent the need to periodically re-authenticate.
Quelle: https://tailscale.com/kb/1038/install-debian-bullseye/