diff --git a/users/guanranwang/home-manager/nixos/home.nix b/users/guanranwang/home-manager/nixos/home.nix
index 4160575..a946108 100644
--- a/users/guanranwang/home-manager/nixos/home.nix
+++ b/users/guanranwang/home-manager/nixos/home.nix
@@ -250,9 +250,34 @@
   #  };
   #};
 
-
   services = {
     udiskie.enable = true;
+    swayidle = let
+      lockCommand = "${pkgs.swaylock-effects}/bin/swaylock --screenshots --clock --indicator --line-color cdd6f4ff --text-color cdd6f4ff --inside-color 1e1e2eff --ring-color 313244ff --line-ver-color cdd6f4ff --text-ver-color cdd6f4ff --inside-ver-color 1e1e2eff --ring-ver-color 313244ff --line-clear-color cdd6f4ff --text-clear-color cdd6f4ff --inside-clear-color 1e1e2eff --ring-clear-color 313244ff --line-clear-color cdd6f4ff --text-wrong-color 313244ff --inside-wrong-color f38ba8ff --ring-wrong-color 313244ff --key-hl-color cba6f7ff --effect-blur 7x5 --effect-vignette 0.5:0.5 --fade-in 0.2";
+    in {
+      enable = true;
+      timeouts = [
+        {
+          timeout = 900;
+          command = "loginctl lock-session";
+        }
+        {
+          timeout = 905;
+          command = ''${pkgs.sway}/bin/swaymsg "output * dpms off"'';
+          resumeCommand = ''${pkgs.sway}/bin/swaymsg "output * dpms on"'';
+        } # turn off screen
+      ];
+      events = [
+        {
+          event = "lock";
+          command = lockCommand;
+        } # loginctl lock-session
+        {
+          event = "before-sleep";
+          command = lockCommand;
+        } # systemctl syspend
+      ];
+    };
   };
 
   programs = {
diff --git a/users/guanranwang/nixos/presets/desktop.nix b/users/guanranwang/nixos/presets/desktop.nix
index ac8aed2..42bd645 100644
--- a/users/guanranwang/nixos/presets/desktop.nix
+++ b/users/guanranwang/nixos/presets/desktop.nix
@@ -10,4 +10,5 @@
   ### home-manager
   home-manager.users.guanranwang = import ../../home-manager/nixos/presets/desktop.nix;
   fonts.enableDefaultPackages = false;
+  security.pam.services.swaylock = {};
 }