diff --git a/common/user-facing.nix b/common/user-facing.nix
index 5c90cbf..bc608e5 100644
--- a/common/user-facing.nix
+++ b/common/user-facing.nix
@@ -5,11 +5,10 @@
     ./exwm.nix
   ];
 
-  # Enable sound with pipewire.
-  hardware.pulseaudio.enable = false;
   security.rtkit.enable = true;
-  services = {
 
+  services = {
+    # Enable sound with pipewire.
     pipewire = {
       enable = true;
       alsa.enable = true;
@@ -21,6 +20,7 @@
       # no need to redefine it in your config for now)
       # media-session.enable = true;
     };
+    pulseaudio.enable = false;
   };
 
   services.xserver = {
@@ -28,7 +28,7 @@
     enable = true;
 
     # Enable the KDE Plasma Desktop Environment.
-    desktopManager.plasma5.enable = true;
+    desktopManager.plasma6.enable = true;
 
     # Enable sddm and startx
     displayManager = {
@@ -91,10 +91,10 @@
     docker
 
     pcmanfm
-    libsForQt5.dolphin
-    libsForQt5.dolphin-plugins
-    libsForQt5.ffmpegthumbs
-    libsForQt5.kdegraphics-thumbnailers
+    kdePackages.dolphin
+    kdePackages.dolphin-plugins
+    kdePackages.ffmpegthumbs
+    kdePackages.kdegraphics-thumbnailers
 
     p7zip
     unzip
diff --git a/flake.lock b/flake.lock
index 9dc0f62..6849d36 100644
--- a/flake.lock
+++ b/flake.lock
@@ -63,16 +63,16 @@
         ]
       },
       "locked": {
-        "lastModified": 1736373539,
-        "narHash": "sha256-dinzAqCjenWDxuy+MqUQq0I4zUSfaCvN9rzuCmgMZJY=",
+        "lastModified": 1753592768,
+        "narHash": "sha256-oV695RvbAE4+R9pcsT9shmp6zE/+IZe6evHWX63f2Qg=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "bd65bc3cde04c16755955630b344bc9e35272c56",
+        "rev": "fc3add429f21450359369af74c2375cb34a2d204",
         "type": "github"
       },
       "original": {
         "owner": "nix-community",
-        "ref": "release-24.11",
+        "ref": "release-25.05",
         "repo": "home-manager",
         "type": "github"
       }
@@ -117,16 +117,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1750330365,
-        "narHash": "sha256-hJ7XMNVsTnnbV2NPmStCC07gvv5l2x7+Skb7hyUzazg=",
+        "lastModified": 1754767907,
+        "narHash": "sha256-8OnUzRQZkqtUol9vuUuQC30hzpMreKptNyET2T9lB6g=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "d883b6213afa179b58ba8bace834f1419707d0ad",
+        "rev": "c5f08b62ed75415439d48152c2a784e36909b1bc",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-24.11",
+        "ref": "nixos-25.05",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -192,16 +192,16 @@
     },
     "update": {
       "locked": {
-        "lastModified": 1746957726,
-        "narHash": "sha256-k9ut1LSfHCr0AW82ttEQzXVCqmyWVA5+SHJkS5ID/Jo=",
+        "lastModified": 1754767907,
+        "narHash": "sha256-8OnUzRQZkqtUol9vuUuQC30hzpMreKptNyET2T9lB6g=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "a39ed32a651fdee6842ec930761e31d1f242cb94",
+        "rev": "c5f08b62ed75415439d48152c2a784e36909b1bc",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "nixos-24.11",
+        "ref": "nixos-25.05",
         "repo": "nixpkgs",
         "type": "github"
       }
diff --git a/flake.nix b/flake.nix
index 4d9a232..a9ce27c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,14 +1,14 @@
 {
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.11";
-    update.url = "github:nixos/nixpkgs/nixos-24.11";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05";
+    update.url = "github:nixos/nixpkgs/nixos-25.05";
     unstable.url = "github:nixos/nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
 
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
 
     home-manager = {
-      url = "github:nix-community/home-manager/release-24.11";
+      url = "github:nix-community/home-manager/release-25.05";
       inputs.nixpkgs.follows = "nixpkgs";
     };
     emacs-overlay = {
@@ -62,7 +62,7 @@
             ];
           };
 
-          NixGate = nixpkgs.lib.nixosSystem {
+          NixGate = pkgs.lib.nixosSystem {
             inherit system;
             specialArgs = { inherit inputs; };
             modules = [
@@ -71,7 +71,7 @@
             ];
           };
 
-          NixSentinel = nixpkgs.lib.nixosSystem {
+          NixSentinel = pkgs.lib.nixosSystem {
             inherit system;
             specialArgs = { inherit inputs; };
             modules = [
@@ -84,7 +84,7 @@
           #   system = "x86_64-linux";
           #   modules = [ ./hosts/NixFrame/configuration.nix ];
           # };
-      };
+        };
 
       packages."${system}" = {
         mps-debug = pkgs.mps-debug;
diff --git a/hosts/NixDawn/configuration.nix b/hosts/NixDawn/configuration.nix
index 0499d30..04fbe5b 100644
--- a/hosts/NixDawn/configuration.nix
+++ b/hosts/NixDawn/configuration.nix
@@ -36,11 +36,11 @@
     description = "Benson Chu";
     extraGroups = [ "networkmanager" "wheel" ];
     packages = with pkgs; [
-      kate
+      kdePackages.kate
+      kdePackages.dolphin
+      kdePackages.breeze-icons
       steam
       moonlight-qt
-      dolphin
-      breeze-icons
       xautolock
       unstable.mqtt-explorer
       musescore
@@ -147,8 +147,6 @@
     supercollider-with-sc3-plugins
   ];
 
-  hardware.gkraken.enable = true;
-
   networking.firewall = {
     enable = true;
     allowedTCPPortRanges = [
diff --git a/hosts/NixFrame/configuration.nix b/hosts/NixFrame/configuration.nix
index 0d02b68..cd5bfec 100644
--- a/hosts/NixFrame/configuration.nix
+++ b/hosts/NixFrame/configuration.nix
@@ -47,7 +47,7 @@
     description = "Benson Chu";
     extraGroups = [ "networkmanager" "wheel" ];
     packages = with pkgs; [
-      kate
+      kdePackages.kate
       steam
     ];
   };