Emacs evaluate source block in external buffer

literate-emacs.el

(define-minor-mode literate-emacs-mode
  "Enable features helpful for literate init file"
  nil
  nil
  (easy-mmode-define-keymap
   `(,(cons (kbd "C-c C-c") #'literate-emacs-evaluate-externally))))

(defun org-babel-execute:emacs-lisp-external (body params)
  ""
  (start-process "" nil "emacs" "-q" (format "--eval=(progn %s)" body)))

(defun literate-emacs-evaluate-externally (&optional arg)
  (interactive)
  (let ((info (org-babel-get-src-block-info)))
    (setf (car info) "emacs-lisp-external")
    (org-babel-execute-src-block arg info)))