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diff --git a/lisp/core/init-keybindings.el b/lisp/core/init-keybindings.el
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+;;; init-keybindings.el --- Global keybindings -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2026 Richard Qin
+;; SPDX-License-Identifier: GPL-3.0-or-later
+
+;; Author: Richard Qin
+;; This file is not part of GNU Emacs.
+
+;;; Commentary:
+
+;; Define personal commands and global keybindings.
+;; Use C-c m as the prefix for custom commands.
+
+;;; Code:
+
+;; ------------------------------------------------------------
+;; Personal commands
+;; ------------------------------------------------------------
+
+(defun my/open-init-file ()
+  "Open the main Emacs initialization file."
+  (interactive)
+  (find-file
+   (expand-file-name "init.el" user-emacs-directory)))
+
+(defun my/open-config-directory ()
+  "Open the Emacs configuration directory in Dired."
+  (interactive)
+  (dired user-emacs-directory))
+
+
+;; ------------------------------------------------------------
+;; Personal keymap
+;; ------------------------------------------------------------
+
+(defvar my/command-map
+  (make-sparse-keymap)
+  "Keymap for personal Emacs commands.")
+
+;; Register the personal command prefix.
+(define-key global-map
+            (kbd "C-c m")
+            my/command-map)
+
+
+;; ------------------------------------------------------------
+;; Keybindings
+;; ------------------------------------------------------------
+
+(define-key my/command-map
+            (kbd "i")
+            #'my/open-init-file)
+
+(define-key my/command-map
+            (kbd "d")
+            #'my/open-config-directory)
+
+(define-key my/command-map
+            (kbd "r")
+            #'revert-buffer)
+
+(define-key my/command-map
+            (kbd "w")
+            #'whitespace-mode)
+
+(define-key my/command-map
+            (kbd "e")
+            #'eval-buffer)
+
+
+(provide 'init-keybindings)
+
+;;; init-keybindings.el ends here