diff --git a/elisp/extras.el b/elisp/extras.el
index 31cc4cf..9c90510 100644
--- a/elisp/extras.el
+++ b/elisp/extras.el
@@ -168,10 +168,15 @@
   :init
   (setenv "WORKON_HOME" "~/.cache/pypoetry/virtualenvs"))
 
+(use-package envrc
+  :hook (after-init . envrc-global-mode))
+
 (use-package python-black
   :after python
   :hook (python-mode . python-black-on-save-mode-enable-dwim))
 
+(use-package ruff-format)
+
 (use-package pydoc)
 
 (use-package pet