headscale: Windows configuration

Download Tailscale for Windows and install it.

Open a Command Prompt or Powershell and use Tailscale's login command to connect with headscale:

tailscale login --login-server https://users.nynex.de

If the login page is not automatically opened in your web-browser, copy the full 'register' URL shown by the command and paste it into the address bar of your web-browser.