use-package slime

(untested)

init.org

@@ -207,8 +207,7 @@
 
   (let* ((package--builtins nil)
          (packages
-          '(slime                ; Superior Lisp Interaction Mode for Emacs
-            try                  ; Try out Emacs packages
+          '(try                  ; Try out Emacs packages
             vterm                ; A terminal via libvterm
             which-key            ; Display available keybindings in popup
             z3-mode)))           ; z3/SMTLIBv2 interactive development
@@ -1472,40 +1471,35 @@
 
 *** Common lisp
 
+    #+begin_quote
+    Note that I haven't used Common Lisp for a very long time, and this setup
+    might be broken. I keep it around for reference.
+    #+end_quote
+
     I use [[http://www.common-lisp.net/project/slime/][Slime]] along with =lisp-mode= to edit Common Lisp code. Slime provides
     code evaluation and other great features, a must have for a Common Lisp
-    developer. [[http://www.quicklisp.org/beta/][Quicklisp]] is a library manager for Common Lisp, and you can
-    install Slime following the instructions from the site along with this
-    snippet.
+    developer. You can install the Common Lisp slime counterpart using
+    [[http://www.quicklisp.org/beta/][Quicklisp]], creating a helper that can be loaded.
+
+    We can specify what Common Lisp program Slime should use (I use SBCL). More
+    sensible =loop= indentation is borrowed from [[https://github.com/simenheg][simenheg]].
 
     #+begin_src emacs-lisp
 
-    (defun activate-slime-helper ()
+    ;; Superior Lisp Interaction Mode for Emacs
+    (use-package slime
+      :defer t
+      :bind (:map slime-repl-mode-map ("C-l" . slime-repl-clear-buffer))
+      :hook (common-lisp-mode . activate-slime-helper)
+      :config
       (when (file-exists-p "~/.quicklisp/slime-helper.el")
-        (load (expand-file-name "~/.quicklisp/slime-helper.el"))
-        (define-key slime-repl-mode-map (kbd "C-l")
-          'slime-repl-clear-buffer))
-      (remove-hook 'common-lisp-mode-hook #'activate-slime-helper))
-
-    (add-hook 'common-lisp-mode-hook #'activate-slime-helper)
-
-    #+end_src
-
-    We can specify what Common Lisp program Slime should use (I use SBCL).
-
-    #+begin_src emacs-lisp
+        (load (expand-file-name "~/.quicklisp/slime-helper.el")))
 
       (setq inferior-lisp-program "sbcl")
 
-    #+end_src
-
-    More sensible =loop= indentation, borrowed from [[https://github.com/simenheg][simenheg]].
-
-    #+begin_src emacs-lisp
-
       (setq lisp-loop-forms-indentation   6
             lisp-simple-loop-indentation  2
-          lisp-loop-keyword-indentation 6)
+            lisp-loop-keyword-indentation 6))
 
     #+end_src