This may be a naive or dumb question, but what are your thoughts on running X or Wayland entirely within a container? Assuming this is possible, it seems that you could eliminate virtually all host requirements (aside from Docker itself, of course) for x11docker. Some light Googling on the subject indicates that folks have had some success running X in a (privileged) container.

As a non-expert on X or Wayland, I think it would be incredibly convenient to not have to worry about which packages I need on the host. This could also lead to some really neat compose files that would fire up GUI apps with essentially no host requirements.

Does that make sense? Thoughts?