So I installed TigerVNC fron the repo, but I can't find x0vncserver.
The idea is to give my mom the machine with the server to be able to help her if (when

To be able to do that, I think I need access to the currently running X.
Since there is 150km distance, there needs to be some kind of crypted connection, so I thought TigerVNC might be a good option.
X11vnc seemed to be hard to set up, because it didn't accept its own certificates (too weak crypto).