Orion is a window manager for the X11 windowing system. Orion is written in Scheme and accesses Xlib via the scx library for scsh. Orion is in fact a family of window managers that can be nested. This enables great flexibility and efficient handling of X11 applications. Orion currently comes with four child window managers: * a conventional moving window manager * a window manager for stacking windows in a frame * a window manager for splitting windows horizontally and vertically * a work space manager Orion also supports saving the window manager layout and programmatic configuration.