diff --git a/.emacs.d/config/dev.el b/.emacs.d/config/dev.el
index 2e61526..f48f857 100644
--- a/.emacs.d/config/dev.el
+++ b/.emacs.d/config/dev.el
@@ -41,5 +41,18 @@
   (let ((find-program "git-find"))
     (find-dired dir "")))
 
+;; python
+;; (defun my-shell-mode-hook ()
+;;   (add-hook
+;;    'comint-output-filter-functions
+;;    'python-pdbtrack-comint-output-filter-function t))
+;; (add-hook 'shell-mode-hook 'my-shell-mode-hook)
+
 ;; enable flyspell checks for comments in code
 (add-hook 'prog-mode-hook #'flyspell-prog-mode)
+
+;; language server
+(use-package lsp-mode
+             :ensure t
+             :config
+             (add-hook 'rust-mode-hook 'lsp-deferred))