sdorfehs (pronounced "starfish") is a tiling window manager descended from
ratpoison (which itself is modeled after GNU Screen).
sdorfehs divides the screen into one or more frames, each only displaying one
window at a time but can cycle through all available windows (those which are
not being shown in another frame).
Like Screen, sdorfehs primarily uses prefixed/modal key bindings for most
actions. sdorfehs's command mode is entered with a configurable keystroke which
then allows a number of bindings accessible with just a single keystroke or any
other combination.
