A base on which to build other things using
This automatically enables encryption and disables stuff like pulseaudio.
You will need to use --encryption=AES on the client side to use the encryption.
This also assumes that there's a password file in /password. The file is not
included in the image in order to require that it be created. If the error
message turns out to be too non-obvious, a wrapper entrypoint will need to be
created but for now, it'll just say /password: file not found (or similar).
xpra-pidgin for a sample
of how to use this base image.