Currently, a *.vv file can only tell the remote-viewer application to open a direct TCP connection to a given port on a given host, optionally with TLS.

But the best option for many people is to run "virt-viewer --connection qemu+ssh://..." instead. The virt-viewer package should be enhanced to allow that.

Issues:

• Wont work on Windows.
• Will only work with new enough virt-viewer versions.
• Needs SSH to be set up for the host.

If it doesn't work, should we silently fallback to direct TCP? Let the launching fail? Let the user choose between SSH tunneling and direct TCP?