emacs config for Mojolicious::Lite file

gistfile1.el

;
; mmm-mode config for Mojolicious::Lite perl file.
; mmm-mode lib is from here: https://github.com/purcell/mmm-mode
; font locks of [c]perl-mode and mmm-mode conflict each other.
;
(add-to-list 'load-path "~/.emacs.d/packages/mmm-mode")

(require 'mmm-auto)
(require 'mmm-compat)
(require 'mmm-vars)

(setq mmm-global-mode 'maybe)

(global-set-key "\M-p" 'mmm-parse-buffer)

;(mmm-set-major-mode-preference 'cperl-mode 'perl-mojo)
(defun mmm-perl-mojo-get-mode (delimiter)
  (let ((filename (substring delimiter 3 nil)))
    (or (assoc-default filename auto-mode-alist #'string-match)
        'fundamental-mode
        (signal 'mmm-no-matching-submode nil))))

(mmm-add-group 'perl-mojo '((perl-mojo-blocks
                             :match-submode mmm-perl-mojo-get-mode
                             :front "^@@ \\(.+\\)$"
                             :front-offset (end-of-line 1)
                             :back "\\(^@@\\|\\'\\)"
                             :back-offset (beginning-of-line -1)
                             :save-matches t
                             :delimiter-mode nil
                             :end-not-begin nil
                             :face mmm-code-submode-face
                             )))

(mmm-add-mode-ext-class 'perl-mode "\\.pl$" 'perl-mojo)
(setq mmm-submode-mode-line-format "~M[~m]")
(setq mmm-submode-decoration-level 2)

To implement this does one simply save it as a file (mojo.el) and then reference that file in the .emacs file? ((provide 'wpdl-mode) (require '/home/foo/mojo.el)) Is that correct? Or am I mistaken?