Package xorg-x11-server-Xephyr

A nested server

http://www.x.org

Xephyr is an X server which has been implemented as an ordinary X application.
It runs in a window just like other X applications, but it is an X server itself
in which you can run other software. It is a very useful tool for developers who
wish to test their applications without running them on their real X server.
Unlike Xnest, Xephyr renders to an X image rather than relaying the X protocol,
and therefore supports the newer X extensions like Render and Composite.

Version: 21.1.14

General Commands

Xephyr X server outputting to a window on a pre-existing X display