update

config/default.nix

@@ -9,6 +9,12 @@ with pkgs;
     alwaysEnsure = true;
     alwaysTangle = true;
 
+    extraEmacsPackages = epkgs:
+      with epkgs; [
+        treemacs
+        treemacs-evil
+      ];
+
     override = epkgs:
       epkgs
       // {

config/init.el

@@ -1,3 +1,6 @@
+; Fixes "Symbol's value as variable is void: personal-keybindings" error
+(require 'bind-key)
+
 ; Disable bars
 (menu-bar-mode -1)
 (scroll-bar-mode -1)
@@ -19,12 +22,20 @@
 (use-package emojify
   :hook (after-init . global-emojify-mode))
 
+; Undo tree
+(use-package undo-tree
+  :demand t
+  :config
+  (global-undo-tree-mode)  ;; Enable undo-tree mode globally
+  (setq undo-tree-history-directory-alist '(("." . "~/.emacs.d/undo"))))  ;; Directory for undo files
+
 ; Evil mode
 (use-package evil
   :ensure t
   :init
   (setq evil-want-integration t) ;; This is optional since it's already set to t by default.
   (setq evil-want-keybinding nil)
+   (setq evil-undo-system 'undo-tree)
   :config
   (evil-mode 1))
 
@@ -41,14 +52,8 @@
   :config
   (global-evil-leader-mode)
   (setq evil-leader/leader "<SPC>")  ;; Set the leader key to space
-  (evil-leader/set-key
-    "a" #'eglot-code-actions))
-
-(use-package undo-tree
-  :demand t
-  :config
-  (global-undo-tree-mode)  ;; Enable undo-tree mode globally
-  (setq undo-tree-history-directory-alist '(("." . "~/.emacs.d/undo"))))  ;; Directory for undo files
+  (evil-leader/set-key "a" #'eglot-code-actions)
+  (evil-leader/set-key "e" #'treemacs))
 
 ; Dashboard
 (use-package dashboard
@@ -57,6 +62,14 @@
   (dashboard-setup-startup-hook)
   (setq dashboard-startup-banner 'logo))
 
+(defun dashboard-recentf-filter (file)
+  "Add to ~recentf-exclude~ to filter recent files in dashboard buffer."
+  (when (eq (get-buffer dashboard-buffer-name)
+            (current-buffer))
+    (string-match "treemacs-persist$" file)))
+
+(add-to-list 'recentf-exclude 'dashboard-recentf-filter)
+
 ; Direnv
 (use-package direnv
  :config
@@ -120,3 +133,12 @@
 
 (use-package eglot :hook (eglot-mode . sideline-mode))  ; enable it when eglot is on
 
+; Centaur tabs
+(use-package centaur-tabs
+  :demand t
+  :config
+  (centaur-tabs-mode t)
+  (setq centaur-tabs-style "wave")
+  :bind
+  ("C-<prior>" . centaur-tabs-backward)
+  ("C-<next>" . centaur-tabs-forward))