diff --git a/global/system.nix b/global/system.nix
index fa92cda..1fa204b 100644
--- a/global/system.nix
+++ b/global/system.nix
@@ -1,5 +1,6 @@
 # https://search.nixos.org/options
 user: {
+  inputs,
   config,
   pkgs,
   lib,
@@ -9,16 +10,19 @@ user: {
     ./home.nix
   ];
 
-  nix.settings = {
-    experimental-features = ["nix-command" "flakes"];
+  nix = {
+    settings = {
+      experimental-features = ["nix-command" "flakes"];
+    };
+    settings.trusted-users = ["root" user];
+
+    registry.nixpkgs.flake = inputs.nixpkgs;
   };
 
   nixpkgs.config.permittedInsecurePackages = [
     "electron-25.9.0"
   ];
 
-  nix.settings.trusted-users = ["root" user];
-
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
@@ -94,15 +98,12 @@ user: {
   services.xserver = {
     layout = lib.mkDefault "gb";
     xkbOptions = "caps:escape";
-    #    extraLayouts = {
-    #      mine = {
-    #        description = "my layout";
-    #        languages = [ "eng" ];
-    #        symbolsFile = ./xkblayout;
-    #      };
-    #    };
   };
 
+  system.configurationRevision =
+    pkgs.lib.mkIf (inputs.self ? rev)
+    inputs.self.rev;
+
   hardware.opentabletdriver.enable = true;
 
   qt.enable = true;
diff --git a/hardware/ddc.nix b/hardware/ddc.nix
new file mode 100644
index 0000000..b8fddac
--- /dev/null
+++ b/hardware/ddc.nix
@@ -0,0 +1,14 @@
+{pkgs, ...}: {
+  boot.kernelModules = [
+    "i2c-dev"
+  ];
+
+  services.udev.extraRules = ''
+    ACTION=="add", SUBSYSTEM=="i2c-dev", ATTR{name}=="AMDGPU DM aux hw bus [0-9]*", TAG+="uaccess"
+    ACTION=="add", SUBSYSTEM=="i2c-dev", ATTR{name}=="AMDGPU DM i2c hw bus [0-9]*", TAG+="uaccess"
+  '';
+
+  environment.systemPackages = with pkgs; [
+    ddcutil
+  ];
+}
diff --git a/hardware/zenix.nix b/hardware/zenix.nix
index 3dfb5a8..92fd275 100644
--- a/hardware/zenix.nix
+++ b/hardware/zenix.nix
@@ -8,6 +8,7 @@
   imports = [
     (modulesPath + "/installer/scan/not-detected.nix")
     ./displays.nix
+    ./ddc.nix
   ];
 
   boot.initrd.availableKernelModules = ["nvme" "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod"];
@@ -65,10 +66,14 @@
   networking.useDHCP = lib.mkDefault true;
   # networking.interfaces.enp5s0.useDHCP = lib.mkDefault true;
 
-  networking.networkmanager.insertNameservers = [ "1.1.1.1" "1.0.0.1" ];
+  networking.networkmanager.insertNameservers = ["1.1.1.1" "1.0.0.1"];
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
+  hardware.opengl = {
+    enable = true;
+    driSupport32Bit = true;
+  };
 
   hardware.keyboard.zsa.enable = true;
 
diff --git a/lib/mkconf.nix b/lib/mkconf.nix
index 818e2e6..21041fa 100644
--- a/lib/mkconf.nix
+++ b/lib/mkconf.nix
@@ -15,27 +15,23 @@ nixpkgs.lib.nixosSystem {
   inherit system;
 
   modules = [
-    ({
-      inputs,
-      pkgs,
-      ...
-    }: {
-      programs.hyprland = {
-        enable = true;
-        package = inputs.hyprland.packages.${pkgs.system}.hyprland;
-      };
-    })
     {
       nix.settings = {
         substituters = ["https://hyprland.cachix.org"];
         trusted-public-keys = ["hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="];
       };
+      programs.hyprland = {
+        enable = true;
+        package = inputs.hyprland.packages.${system}.hyprland;
+      };
     }
+
     inputs.stylix.nixosModules.stylix
     ({pkgs, ...}: {
       stylix.image = ../images/demonslayer.png;
       stylix.base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-dark-hard.yaml";
     })
+
     home-manager.nixosModules.home-manager
     {
       home-manager.useGlobalPkgs = true;
diff --git a/lib/modules/gamer.nix b/lib/modules/gamer.nix
index fb9d0f9..c2d06d0 100644
--- a/lib/modules/gamer.nix
+++ b/lib/modules/gamer.nix
@@ -14,6 +14,23 @@ with lib; {
     nixpkgs.config.permittedInsecurePackages = [
       "electron-25.9.0"
     ];
+    nixpkgs.config.packageOverrides = pkgs: {
+      steam = pkgs.steam.override {
+        extraPkgs = pkgs:
+          with pkgs; [
+            xorg.libXcursor
+            xorg.libXi
+            xorg.libXinerama
+            xorg.libXScrnSaver
+            libpng
+            libpulseaudio
+            libvorbis
+            stdenv.cc.cc.lib
+            libkrb5
+            keyutils
+          ];
+      };
+    };
 
     home-manager.users.${user}.imports = [
       {
@@ -27,7 +44,6 @@ with lib; {
           BeatSaberModManager
           protontricks
           protonup-qt
-          gamemode
           gamescope
 
           monado
@@ -57,6 +73,7 @@ with lib; {
       remotePlay.openFirewall = true;
       dedicatedServer.openFirewall = true;
     };
+    programs.gamemode.enable = true;
 
     hardware.steam-hardware.enable = true;
     environment.etc.logitechG920 = {