;; get quack.el from http://www.neilvandyke.org/quack/

(add-to-list 'load-path (expand-file-name "~/your-elisp/dir"))
;; put quack.el into it ;-)

;; add the following to your dot-emacs:
(autoload 'scheme-mode "quack" "Quack scheme editing mode" t)
(autoload 'run-scheme "quack" "Quack scheme editing mode" t)

;; Get rid of the annoying (always present) quack menu
(setq-default quack-global-menu-p nil)