Have you tried Stumpwm? It's meant to be the successor to Ratpoison. Written entirely in Common Lisp, and allows for configuration while it's running. I've been

Have you tried Stumpwm? It's meant to be the successor to Ratpoison. Written entirely in Common Lisp, and allows for configuration while it's running. I've been using it full time for almost a year and I doubt I'll switch anytime soon.