Add back this piece of code otherwise StumpWM won’t work it seems

init.lisp

@@ -1,3 +1,9 @@
+#-quicklisp
+(let ((quicklisp-init (merge-pathnames "quicklisp/setup.lisp"
+                                       (user-homedir-pathname))))
+  (when (probe-file quicklisp-init)
+    (load quicklisp-init)))
+
 ;;; init
 (in-package :stumpwm)
 (setf *default-package* :stumpwm)

keybindings.lisp

@@ -106,7 +106,6 @@
 (define-key *top-map* (kbd "s-a")   '*my-applications-keymap*)
 
 (define-key *root-map* (kbd "SPC") "exec kitty")
-(define-key *root-map* (kbd "b")   "exec firefox")
 (define-key *root-map* (kbd "l")   "exec plock")
 (define-key *root-map* (kbd "r")   "reload")
 (define-key *root-map* (kbd "w")   '*my-frames-management-keymap*)