Byte-compile emacs configuration upon startup, if it's changed

conditionally-byte-compile.el

(let ((config-org (concat user-emacs-directory "main-config.org"))
      (config-el (concat user-emacs-directory "main-config.el")))
  (if (file-newer-than-file-p config-org config-el)
      (progn
        (message "TANGLING THE CONFIG")
        (org-babel-load-file config-org)
        (run-with-idle-timer 10 nil
                             (lambda ()
                               (byte-compile-file config-el)
                               (message "CONFIG BYTE COMPILED"))))
    (load-file config-el)))