diff --git a/machines/laptop/configuration.nix b/machines/laptop/configuration.nix
index cb416cc..1f0588e 100644
--- a/machines/laptop/configuration.nix
+++ b/machines/laptop/configuration.nix
@@ -61,7 +61,6 @@
 
   # Enable the X11 windowing system.
   services.xserver.enable = true;
-  # services.xserver.dpi = 96;
 
   # Enable the GNOME Desktop Environment.
   services.xserver.displayManager.gdm.enable = true;
@@ -89,15 +88,8 @@
     pulse.enable = true;
     # If you want to use JACK applications, uncomment this
     jack.enable = true;
-
-    # use the example session manager (no others are packaged yet so this is enabled by default,
-    # no need to redefine it in your config for now)
-    #media-session.enable = true;
   };
 
-  # Enable touchpad support (enabled default in most desktopManager).
-  # services.xserver.libinput.enable = true;
-
   # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.xin = {
     isNormalUser = true;
@@ -133,13 +125,13 @@
     tree
     wget
     tmux
-    # ffmpeg
+    ffmpeg
     tealdeer
     neofetch
     rclone
     clash
     # tesseract5 # ocr
-    # ocrmypdf # pdfocr
+    ocrmypdf # pdfocr
 
     grc
     fishPlugins.pisces
@@ -159,7 +151,7 @@
     git
   
     jetbrains.jdk # patch jetbrain runtime java
-    # jetbrains.clion
+    jetbrains.clion
     jetbrains.pycharm-professional
     jetbrains.idea-ultimate
     android-studio