It wasn't the porth syntax that seemd to break everything

config.el

@@ -6,9 +6,6 @@
 ;; Notes:
 ;; * Don't forget to =pip install cmake-language-server=
 
-;; By default new buffers are in org mode
-(setq-default major-mode 'org-mode)
-
 ;; Some functionality uses this to identify you, e.g. GPG configuration, email
 ;; clients, file templates and snippets.
 (setq user-full-name            "Maël MARTIN"
@@ -68,7 +65,7 @@
  '(org-level-5 ((t (:inherit outline-5 :height 1.0)))))
 
 ;; Custom packages
-;; (load! "packages/porth-mode.el")
+(load! "packages/porth-mode.el")
 
 ;; Here are some additional functions/macros that could help you configure Doom:
 ;;