diff --git a/flake.lock b/flake.lock
index 41a2053..e7466a0 100755
--- a/flake.lock
+++ b/flake.lock
@@ -71,11 +71,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1744662018,
-        "narHash": "sha256-xfHUAfPVYp+zD0sOg9KMNEHBj8O06G7xHgDgNQ2Q1lw=",
+        "lastModified": 1746548387,
+        "narHash": "sha256-GYk8aP4eRg5SuMXZqx+oYURmQqwLip4Ak/n1K0sI0MQ=",
         "owner": "chaotic-cx",
         "repo": "nyx",
-        "rev": "6318c913eb1b29236050bbb0202d957c6ae97191",
+        "rev": "1b140c87692a5b3dcf8229ae3677a4d7a121c4e5",
         "type": "github"
       },
       "original": {
@@ -92,11 +92,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1744919155,
-        "narHash": "sha256-IJksPW32V9gid9vDxoloJMRk+YGjxq5drFHBFeBkKU8=",
+        "lastModified": 1746413188,
+        "narHash": "sha256-i6BoiQP0PasExESQHszC0reQHfO6D4aI2GzOwZMOI20=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "72526a5f7cde2ef9075637802a1e2a8d2d658f70",
+        "rev": "8a318641ac13d3bc0a53651feaee9560f9b2d89a",
         "type": "github"
       },
       "original": {
@@ -148,11 +148,11 @@
     },
     "desktop-nixos-hardware": {
       "locked": {
-        "lastModified": 1744633460,
-        "narHash": "sha256-fbWE4Xpw6eH0Q6in+ymNuDwTkqmFmtxcQEmtRuKDTTk=",
+        "lastModified": 1746468201,
+        "narHash": "sha256-hSOSlrvMJwGr8hX/gc0mnhUf5UIClMDUAadfXlSXzfc=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "9a049b4a421076d27fee3eec664a18b2066824cb",
+        "rev": "6aabf68429c0a414221d1790945babfb6a0bd068",
         "type": "github"
       },
       "original": {
@@ -164,16 +164,16 @@
     },
     "desktop-nixpkgs": {
       "locked": {
-        "lastModified": 1744463964,
-        "narHash": "sha256-LWqduOgLHCFxiTNYi3Uj5Lgz0SR+Xhw3kr/3Xd0GPTM=",
+        "lastModified": 1746663398,
+        "narHash": "sha256-gdmqhD5pJfHdie6/ceFaxNNSMUuxCo4VwdCn1XtZ46w=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2631b0b7abcea6e640ce31cd78ea58910d31e650",
+        "rev": "58e670273a92a3c024f07849fcd7c74b0b297f69",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-unstable",
+        "ref": "staging-next",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -185,11 +185,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1744669848,
-        "narHash": "sha256-pXyanHLUzLNd3MX9vsWG+6Z2hTU8niyphWstYEP3/GU=",
+        "lastModified": 1746485181,
+        "narHash": "sha256-PxrrSFLaC7YuItShxmYbMgSuFFuwxBB+qsl9BZUnRvg=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "61154300d945f0b147b30d24ddcafa159148026a",
+        "rev": "e93ee1d900ad264d65e9701a5c6f895683433386",
         "type": "github"
       },
       "original": {
@@ -230,11 +230,11 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1744618085,
-        "narHash": "sha256-+VdhZsIiIDtyOL88c4U/Os1PsCMLOCyScIeWL4hxJRM=",
+        "lastModified": 1746427067,
+        "narHash": "sha256-MlBKT0A2nK8LHDkeg3jrG2wo80C1bSGyT2tmKrc6pM0=",
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "a85d390a5607188dca2dbc39b5b37571651d69ce",
+        "rev": "9e7d648c1f8fdf7beb9b0b1abb3a41d0d8b5fb05",
         "type": "github"
       },
       "original": {
@@ -566,11 +566,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1744659400,
-        "narHash": "sha256-q0wwsR/hvOjj1G8ogdudX5cU0IE/Vgvgjo9g9OpQv5U=",
+        "lastModified": 1746413188,
+        "narHash": "sha256-i6BoiQP0PasExESQHszC0reQHfO6D4aI2GzOwZMOI20=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "5a096a8822cb98584c5dc4f2616dcd5ed394bfd7",
+        "rev": "8a318641ac13d3bc0a53651feaee9560f9b2d89a",
         "type": "github"
       },
       "original": {
@@ -609,11 +609,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1744648917,
-        "narHash": "sha256-xtBc0YMCP/x3+3iqnfdd4d9qEHvxQsGHamhhlegsGFE=",
+        "lastModified": 1746158343,
+        "narHash": "sha256-i/1os9oEq0m/Da4FTdSqKUdI4+wzrvoDTuk1/dHSVDc=",
         "owner": "Jovian-Experiments",
         "repo": "Jovian-NixOS",
-        "rev": "66c4c9dccd26330ebb0e91aa6ba89ca8835dfdc5",
+        "rev": "8b45a8efb2829adf2996b51965ada1e4620631ac",
         "type": "github"
       },
       "original": {
@@ -677,9 +677,7 @@
         "flake-parts": "flake-parts_2",
         "flake-utils": "flake-utils",
         "napalm": "napalm",
-        "nixpkgs": [
-          "nas-nixpkgs-stable"
-        ],
+        "nixpkgs": "nixpkgs_2",
         "poetry2nix": "poetry2nix",
         "systems": "systems"
       },
@@ -982,11 +980,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1744463964,
-        "narHash": "sha256-LWqduOgLHCFxiTNYi3Uj5Lgz0SR+Xhw3kr/3Xd0GPTM=",
+        "lastModified": 1746328495,
+        "narHash": "sha256-uKCfuDs7ZM3QpCE/jnfubTg459CnKnJG/LwqEVEdEiw=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2631b0b7abcea6e640ce31cd78ea58910d31e650",
+        "rev": "979daf34c8cacebcd917d540070b52a3c2b9b16e",
         "type": "github"
       },
       "original": {
@@ -1108,6 +1106,22 @@
       }
     },
     "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1746461020,
+        "narHash": "sha256-7+pG1I9jvxNlmln4YgnlW4o+w0TZX24k688mibiFDUE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "3730d8a308f94996a9ba7c7138ede69c1b9ac4ae",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_3": {
       "locked": {
         "lastModified": 1744932701,
         "narHash": "sha256-fusHbZCyv126cyArUwwKrLdCkgVAIaa/fQJYFlCEqiU=",
@@ -1364,11 +1378,11 @@
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1744539868,
-        "narHash": "sha256-NPUnfDAwLD69aKetxjC7lV5ysrvs1IKC0Sy4Zai10Mw=",
+        "lastModified": 1746332785,
+        "narHash": "sha256-d4/WBcspAR38AMsZysrQsenF1NmZ0/9GhjD4hxvPygo=",
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "8365cf853e791c93fa8bc924f031f11949bb1a3c",
+        "rev": "3b57c001518aeb42511e177221f98ecf42104016",
         "type": "github"
       },
       "original": {
@@ -1485,7 +1499,7 @@
         "flake-schemas": "flake-schemas_2",
         "home-manager": "home-manager_2",
         "jovian": "jovian_2",
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": "nixpkgs_3"
       },
       "locked": {
         "lastModified": 1745232749,
diff --git a/flake.nix b/flake.nix
index b14dd4b..9046a65 100755
--- a/flake.nix
+++ b/flake.nix
@@ -9,7 +9,7 @@
 
     # nixpgs
     desktop-nixpkgs = {
-      url = "github:NixOS/nixpkgs/nixos-unstable";
+      url = "github:NixOS/nixpkgs/staging-next";
     };
 
     # Chaotic-nix
diff --git a/hosts/desktop/configuration.nix b/hosts/desktop/configuration.nix
index 1394bae..cc2145a 100755
--- a/hosts/desktop/configuration.nix
+++ b/hosts/desktop/configuration.nix
@@ -35,6 +35,7 @@ let
     memtest86-efi
     memtest86plus
     nano
+    occt
     onlyoffice-bin
     os-prober
     nil
@@ -88,6 +89,26 @@ let
         voltage_offset: 0
         power_states: {}
   '';
+  occt = pkgs.stdenv.mkDerivation {
+      pname = "occt";
+      version = "14.0.10";
+
+      src = pkgs.fetchurl {
+        url = "https://www.ocbase.com/download-bin/edition:Personal/os:Linux";
+        sha256 = "sha256-UKObmwQpYMuG6D6jb5Wrs0FO/sxijUlHqCezG45KqJc=";
+      };
+
+      dontUnpack = true;
+
+      buildPhase = ''
+        mkdir -p $out/bin
+        cp $src $out/bin/OCCT
+        chmod +x $out/bin/OCCT
+      '';
+
+
+      installPhase = "true";
+    };
 in
 {
   imports = [
@@ -101,6 +122,7 @@ in
     ./users.nix
     ../default.nix
     ../../share/amd
+    # ../../modules/desktop-environments/cosmic/specialisation.nix
   ];
 
   # Environment configuration
@@ -141,6 +163,23 @@ in
 
   # Programs configuration
   programs = {
+    nix-ld = {
+      enable = true;
+      libraries = with pkgs; [
+        bash
+        glib
+        libgcc
+        icu
+        zlib
+        fontconfig
+        xorg.libX11
+        xorg.libICE
+        xorg.libSM
+        xorg.libXcursor
+        xorg.libXrandr
+        xorg.libXi
+      ];
+    };
     gamemode.enable = true;
     coolercontrol.enable = true;
     kdeconnect = {
diff --git a/hosts/desktop/services.nix b/hosts/desktop/services.nix
index eb212db..3209b8e 100755
--- a/hosts/desktop/services.nix
+++ b/hosts/desktop/services.nix
@@ -9,8 +9,8 @@ in
       desktopManager.gnome.enable = true;
       # Enable Desktop Environment.
       displayManager = {
-        gdm.enable = lib.mkForce true;
-        gdm.wayland = lib.mkForce true;
+        gdm.enable = lib.mkDefault true;
+        gdm.wayland = lib.mkDefault true;
       };
     };
 
diff --git a/modules/desktop-environments/cosmic/specialisation.nix b/modules/desktop-environments/cosmic/specialisation.nix
new file mode 100755
index 0000000..ecdc2d9
--- /dev/null
+++ b/modules/desktop-environments/cosmic/specialisation.nix
@@ -0,0 +1,18 @@
+{ lib, ... }:
+{
+  specialisation.cosmic.configuration = {
+    services = {
+      desktopManager.cosmic.enable = lib.mkForce true;
+      displayManager.cosmic-greeter.enable = lib.mkForce true;
+      # Disable Gnome
+      xserver = {
+        desktopManager.gnome.enable = lib.mkForce false;
+        # Enable Desktop Environment.
+        displayManager = {
+          gdm.enable = lib.mkForce false;
+          gdm.wayland = lib.mkForce false;
+        };
+      };
+    };
+  };
+}