diff --git a/alex/home.nix b/alex/home.nix
index 983e222..d576311 100644
--- a/alex/home.nix
+++ b/alex/home.nix
@@ -28,6 +28,16 @@
     yt-dlp
   ];
 
+  # WM/DE config
+  gtk = {
+    enable = true;
+    font.name = "Victor Mono SemiBold 12";
+    theme = {
+      name = "SolArc-Dark";
+      package = pkgs.solarc-gtk-theme;
+    };
+  };
+
   # User software configurations
   programs = {
     git = {
@@ -83,6 +93,7 @@
   # the Home Manager release notes for a list of state version
   # changes in each release.
   home.stateVersion = "23.05";
+  home.enableNixpkgsReleaseCheck = true;
 
   # Let Home Manager install and manage itself.
   programs.home-manager.enable = true;
diff --git a/flake.lock b/flake.lock
index d70cd6c..b8e2480 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,27 @@
 {
   "nodes": {
+    "atau-nixpkgs": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1687128134,
+        "narHash": "sha256-6O3MUIm5dJMRUw4VxYQFtTvnvemzS59HMyulZ5TEqCg=",
+        "ref": "main",
+        "rev": "b8db8ac34275a625ac6f6f51ad435227526d54f0",
+        "revCount": 4,
+        "type": "git",
+        "url": "https://git.atauno.com/atau/atau-nixpkgs"
+      },
+      "original": {
+        "ref": "main",
+        "rev": "b8db8ac34275a625ac6f6f51ad435227526d54f0",
+        "type": "git",
+        "url": "https://git.atauno.com/atau/atau-nixpkgs"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -39,6 +61,7 @@
     },
     "root": {
       "inputs": {
+        "atau-nixpkgs": "atau-nixpkgs",
         "home-manager": "home-manager",
         "nixpkgs": "nixpkgs"
       }
diff --git a/flake.nix b/flake.nix
index 883f2d3..f9873c8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,24 +3,39 @@
 
   inputs = {
     nixpkgs.url = github:NixOS/nixpkgs/nixos-23.05;
+
+    atau-nixpkgs.url = "git+https://git.atauno.com/atau/atau-nixpkgs?ref=main&rev=b8db8ac34275a625ac6f6f51ad435227526d54f0";
+    atau-nixpkgs.inputs.nixpkgs.follows = "nixpkgs";
+
     home-manager.url = "github:nix-community/home-manager/release-23.05";
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = inputs@{ nixpkgs, home-manager, ... }: {
-    nixosConfigurations.nixos76 = nixpkgs.lib.nixosSystem {
+  outputs = inputs@{ nixpkgs, atau-nixpkgs, home-manager, ... }:
+    let
       system = "x86_64-linux";
-      modules = [
-        ./system/configuration.nix
-        home-manager.nixosModules.home-manager
-        {
-          home-manager.useGlobalPkgs = true;
-          home-manager.useUserPackages = true;
-          home-manager.users.alex = import ./alex/home.nix;
-          # Optionally, use home-manager.extraSpecialArgs to pass
-          # arguments to home.nix
-        }
-      ];
+      pkgs = import nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+        # note: atau-nixpkgs currently only provides the `theme-platinum9` package which is broken due to gtk2 being unsupported in newer xfce
+        overlays = [ atau-nixpkgs.overlay ];
+      };
+    in
+    {
+      nixosConfigurations.nixos76 = nixpkgs.lib.nixosSystem {
+        inherit pkgs;
+        inherit system;
+        modules = [
+          ./system/configuration.nix
+          home-manager.nixosModules.home-manager
+          {
+            home-manager.useGlobalPkgs = true;
+            home-manager.useUserPackages = true;
+            home-manager.users.alex = import ./alex/home.nix;
+            # Optionally, use home-manager.extraSpecialArgs to pass
+            # arguments to home.nix
+          }
+        ];
+      };
     };
-  };
 }