Automatically set the executable flag on scripts

.config/emacs/init.el

@@ -4,6 +4,7 @@
   :elpaca nil
   :bind (("C-z" . nil)
          ("C-z i" . (lambda () (interactive) (find-file user-init-file))))
+  :hook ((after-save . executable-make-buffer-file-executable-if-script-p))
   :config
   (defalias 'yes-or-no-p 'y-or-n-p)
   (display-time-mode)