diff --git a/reference/hosts/adrastea/configuration.nix b/reference/hosts/adrastea/configuration.nix
index 6beac24..2a86964 100755
--- a/reference/hosts/adrastea/configuration.nix
+++ b/reference/hosts/adrastea/configuration.nix
@@ -12,6 +12,11 @@
 
   networking.hostName = "adrastea";
 
+  services.mullvad-vpn = {
+    enable = true;
+    package = pkgs.mullvad-vpn;
+  };
+
   liminalOS = {
     flakeLocation = "/home/youwen/.config/liminalOS";
     config.allowUnfree = true;
@@ -64,23 +69,24 @@
 
   powerManagement.cpuFreqGovernor = "performance";
 
-  time.timeZone = "America/Los_Angeles";
+  # time.timeZone = "America/Los_Angeles";
+  time.timeZone = "Asia/Shanghai";
 
   hardware.nvidia = {
-    # modesetting.enable = true;
-    # powerManagement.enable = true;
-    # powerManagement.finegrained = false;
+    modesetting.enable = true;
+    powerManagement.enable = true;
+    powerManagement.finegrained = false;
     # nvidiaSettings = true;
-    # open = true;
-    prime = {
-      amdgpuBusId = "PCI:4:0:0";
-      nvidiaBusId = "PCI:1:0:0";
-      # offload = {
-      #   enable = true;
-      #   enableOffloadCmd = true;
-      # };
-      sync.enable = true;
-    };
+    open = true;
+    # prime = {
+    #   amdgpuBusId = "PCI:4:0:0";
+    #   nvidiaBusId = "PCI:1:0:0";
+    #   # offload = {
+    #   #   enable = true;
+    #   #   enableOffloadCmd = true;
+    #   # };
+    #   sync.enable = true;
+    # };
   };
 
   services.keyd = {
@@ -91,10 +97,8 @@
         settings = {
           main = {
             capslock = "esc";
-            leftmeta = "leftcontrol";
-            leftalt = "leftmeta";
+            leftalt = "leftcontrol";
             leftcontrol = "leftalt";
-            rightmeta = "leftalt";
             rightalt = "layer(rightalt)";
           };
           rightalt = {
diff --git a/reference/hosts/adrastea/home.nix b/reference/hosts/adrastea/home.nix
index 93e3608..0c57b5e 100644
--- a/reference/hosts/adrastea/home.nix
+++ b/reference/hosts/adrastea/home.nix
@@ -7,22 +7,23 @@
   home.stateVersion = "24.05";
 
   wayland.windowManager.hyprland.settings.monitor = lib.mkForce [
-    "eDP-1,2560x1440@165,0x0,1.6"
-    # "eDP-1, disable"
+    # "eDP-1,2560x1440@165,0x0,1.6"
+    "eDP-1, disable"
     # "HDMI-A-1,2560x1440@144,0x0,1.0"
+    "HDMI-A-1,1920x1080@60,0x0,1.0"
   ];
 
   # since we are using this as a "desktop" of sorts, we have no need to save
   # power by using optimus. poor performance on external display, so we add
   # this line to force hyprland to use the nvidia GPU only for rendering. can
   # be removed if only using internal display
-  # wayland.windowManager.hyprland.settings.env = [
-  #   "AQ_DRM_DEVICES,/dev/dri/card1:/dev/dri/card0"
-  # ];
+  wayland.windowManager.hyprland.settings.env = [
+    "AQ_DRM_DEVICES,/dev/dri/card1:/dev/dri/card0"
+  ];
 
-  # programs.waybar.settings.mainBar.output = "HDMI-A-1";
-  programs.waybar.settings.mainBar.output = "eDP-1";
+  programs.waybar.settings.mainBar.output = "HDMI-A-1";
+  # programs.waybar.settings.mainBar.output = "eDP-1";
 
-  # liminalOS.desktop.hyprland.screenlocker.monitor = "HDMI-A-1";
-  liminalOS.desktop.hyprland.screenlocker.monitor = "eDP-1";
+  liminalOS.desktop.hyprland.screenlocker.monitor = "HDMI-A-1";
+  # liminalOS.desktop.hyprland.screenlocker.monitor = "eDP-1";
 }