diff --git a/nixos/flake.lock b/nixos/flake.lock
index fb6881e..e38ab50 100644
--- a/nixos/flake.lock
+++ b/nixos/flake.lock
@@ -2,18 +2,14 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1736883708,
-        "narHash": "sha256-uQ+NQ0/xYU0N1CnXsa2zghgNaOPxWpMJXSUJJ9W7140=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "eb62e6aa39ea67e0b8018ba8ea077efe65807dc8",
-        "type": "github"
+        "lastModified": 0,
+        "narHash": "sha256-vH5mXxEvZeoGNkqKoCluhTGfoeXCZ1seYhC2pbMN0sg=",
+        "path": "/nix/store/zd5dgszslv09jzybcpf25gpl12s6r2d9-source",
+        "type": "path"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
+        "id": "nixpkgs",
+        "type": "indirect"
       }
     },
     "nixpkgs_2": {
@@ -43,11 +39,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1736997529,
-        "narHash": "sha256-eyZXz3aphVJ8mMZ5KivtnYS+5vhNxVjWGlBJM0DMqlE=",
+        "lastModified": 1737404254,
+        "narHash": "sha256-L8Lxp/WVdy9gKO2cXptphdP8cMsnGvZF5Noj8N3jLzI=",
         "owner": "0xc000022070",
         "repo": "zen-browser-flake",
-        "rev": "96be5663cc2ef52e8815c90f7abf3363be3950c2",
+        "rev": "f8ef9c97ac2f49d5c04dbf3b3d80a0490c05fefb",
         "type": "github"
       },
       "original": {
diff --git a/nixos/flake.nix b/nixos/flake.nix
index ce51051..581c13b 100644
--- a/nixos/flake.nix
+++ b/nixos/flake.nix
@@ -2,14 +2,13 @@
   description = "Bart's NixOS Configuration";
 
   inputs = {
-      nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-      zen-browser.url = "github:0xc000022070/zen-browser-flake";
+    zen-browser.url = "github:0xc000022070/zen-browser-flake";
   };
 
   outputs = { nixpkgs, ... } @ inputs:
   {
     nixosConfigurations = {
-      default = nixpkgs.lib.nixosSystem {
+      tongfang = nixpkgs.lib.nixosSystem {
         specialArgs = { inherit inputs; };
         modules = [
           ./hardware/tongfang.nix
@@ -20,93 +19,93 @@
         ];
       };
 
-      tongfang = nixpkgs.lib.nixosSystem {
-        specialArgs = { inherit inputs; };
-        modules = [
-          ./hardware/tongfang.nix
+      # tongfang = nixpkgs.lib.nixosSystem {
+      #   specialArgs = { inherit inputs; };
+      #   modules = [
+      #     ./hardware/tongfang.nix
 
-          ./modules/kde.nix
-          ./modules/battery.nix
-          ./modules/bluetooth.nix
-          ./modules/bootloader.nix
-          ./modules/configuration.nix
-          ./modules/creative-tools.nix
-          ./modules/devops-tools.nix
-          ./modules/display-manager.nix
-          ./modules/environment-variables.nix
-          ./modules/firewall.nix
-          ./modules/fonts.nix
-          ./modules/gc.nix
-          ./modules/greeter.nix
-          ./modules/info-fetchers.nix
-          ./modules/internationalisation.nix
-          ./modules/keyboard.nix
-          ./modules/linux-kernel.nix
-          ./modules/lsp.nix
-          ./modules/networking.nix
-          ./modules/nix-settings.nix
-          ./modules/nixpkgs.nix
-          ./modules/open-ssh.nix
-          ./modules/printing.nix
-          ./modules/programming-languages.nix
-          ./modules/screen.nix
-          ./modules/services.nix
-          ./modules/sound.nix
-          ./modules/terminal-utils.nix
-          ./modules/theme.nix
-          ./modules/time.nix
-          ./modules/usb.nix
-          ./modules/users.nix
-          ./modules/utils.nix
-          ./modules/virtualisation.nix
-          ./modules/vpn.nix
-          ./modules/work.nix
-        ];
-      };
+      #     ./modules/kde.nix
+      #     ./modules/battery.nix
+      #     ./modules/bluetooth.nix
+      #     ./modules/bootloader.nix
+      #     ./modules/configuration.nix
+      #     ./modules/creative-tools.nix
+      #     ./modules/devops-tools.nix
+      #     ./modules/display-manager.nix
+      #     ./modules/environment-variables.nix
+      #     ./modules/firewall.nix
+      #     ./modules/fonts.nix
+      #     ./modules/gc.nix
+      #     ./modules/greeter.nix
+      #     ./modules/info-fetchers.nix
+      #     ./modules/internationalisation.nix
+      #     ./modules/keyboard.nix
+      #     ./modules/linux-kernel.nix
+      #     ./modules/lsp.nix
+      #     ./modules/networking.nix
+      #     ./modules/nix-settings.nix
+      #     ./modules/nixpkgs.nix
+      #     ./modules/open-ssh.nix
+      #     ./modules/printing.nix
+      #     ./modules/programming-languages.nix
+      #     ./modules/screen.nix
+      #     ./modules/services.nix
+      #     ./modules/sound.nix
+      #     ./modules/terminal-utils.nix
+      #     ./modules/theme.nix
+      #     ./modules/time.nix
+      #     ./modules/usb.nix
+      #     ./modules/users.nix
+      #     ./modules/utils.nix
+      #     ./modules/virtualisation.nix
+      #     ./modules/vpn.nix
+      #     ./modules/work.nix
+      #   ];
+      # };
 
-      qemu = nixpkgs.lib.nixosSystem {
-        specialArgs = { inherit inputs; };
-        modules = [
-          ./hardware/qemu.nix
+      # qemu = nixpkgs.lib.nixosSystem {
+      #   specialArgs = { inherit inputs; };
+      #   modules = [
+      #     ./hardware/qemu.nix
 
-          ./modules/kde.nix
-          # ./modules/battery.nix
-          # ./modules/bluetooth.nix
-          # ./modules/bootloader.nix
-          ./modules/configuration.nix
-          # ./modules/creative-tools.nix
-          # ./modules/devops-tools.nix
-          ./modules/display-manager.nix
-          # ./modules/environment-variables.nix
-          # ./modules/firewall.nix
-          # ./modules/fonts.nix
-          # ./modules/gc.nix
-          ./modules/greeter.nix
-          # ./modules/info-fetchers.nix
-          # ./modules/internationalisation.nix
-          # ./modules/keyboard.nix
-          # ./modules/linux-kernel.nix
-          # ./modules/lsp.nix
-          ./modules/networking.nix
-          ./modules/nix-settings.nix
-          # ./modules/nixpkgs.nix
-          # ./modules/open-ssh.nix
-          # ./modules/printing.nix
-          # ./modules/programming-languages.nix
-          # ./modules/screen.nix
-          # ./modules/services.nix
-          # ./modules/sound.nix
-          # ./modules/terminal-utils.nix
-          # ./modules/theme.nix
-          # ./modules/time.nix
-          # ./modules/usb.nix
-          ./modules/users.nix
-          # ./modules/utils.nix
-          # ./modules/virtualisation.nix
-          # ./modules/vpn.nix
-          # ./modules/work.nix
-        ];
-      };
+      #     ./modules/kde.nix
+      #     # ./modules/battery.nix
+      #     # ./modules/bluetooth.nix
+      #     # ./modules/bootloader.nix
+      #     ./modules/configuration.nix
+      #     # ./modules/creative-tools.nix
+      #     # ./modules/devops-tools.nix
+      #     ./modules/display-manager.nix
+      #     # ./modules/environment-variables.nix
+      #     # ./modules/firewall.nix
+      #     # ./modules/fonts.nix
+      #     # ./modules/gc.nix
+      #     ./modules/greeter.nix
+      #     # ./modules/info-fetchers.nix
+      #     # ./modules/internationalisation.nix
+      #     # ./modules/keyboard.nix
+      #     # ./modules/linux-kernel.nix
+      #     # ./modules/lsp.nix
+      #     ./modules/networking.nix
+      #     ./modules/nix-settings.nix
+      #     # ./modules/nixpkgs.nix
+      #     # ./modules/open-ssh.nix
+      #     # ./modules/printing.nix
+      #     # ./modules/programming-languages.nix
+      #     # ./modules/screen.nix
+      #     # ./modules/services.nix
+      #     # ./modules/sound.nix
+      #     # ./modules/terminal-utils.nix
+      #     # ./modules/theme.nix
+      #     # ./modules/time.nix
+      #     # ./modules/usb.nix
+      #     ./modules/users.nix
+      #     # ./modules/utils.nix
+      #     # ./modules/virtualisation.nix
+      #     # ./modules/vpn.nix
+      #     # ./modules/work.nix
+      #   ];
+      # };
     };
   };
 }
diff --git a/nixos/hardware/tongfang.nix b/nixos/hardware/tongfang.nix
index 7e70b06..f5a93ca 100644
--- a/nixos/hardware/tongfang.nix
+++ b/nixos/hardware/tongfang.nix
@@ -3,6 +3,12 @@
 # to /etc/nixos/configuration.nix instead.
 { config, lib, pkgs, modulesPath, ... }:
 
+let
+  yt6801 = import ./yt6801.nix {
+    inherit (pkgs) stdenv lib fetchzip;
+    kernel = pkgs.linuxPackages.kernel;
+  };
+in
 {
   imports =
     [ (modulesPath + "/installer/scan/not-detected.nix")
@@ -35,4 +41,4 @@
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   hardware.cpu.amd.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
-}
+}
\ No newline at end of file
diff --git a/nixos/hardware/yt6801.nix b/nixos/hardware/yt6801.nix
new file mode 100644
index 0000000..22fd9ca
--- /dev/null
+++ b/nixos/hardware/yt6801.nix
@@ -0,0 +1,51 @@
+{
+  kernel,
+  stdenv,
+  lib,
+  fetchzip,
+}:
+
+stdenv.mkDerivation {
+  pname = "yt6801";
+  version = "1.0.29";
+
+  src = fetchzip {
+    url = "https://www.motor-comm.com/Public/Uploads/uploadfile/files/20240812/yt6801-linux-driver-1.0.29.zip";
+    sha256 = "sha256-oz6CeOUN6QWKXxe3WUZljhGDTFArsknjzBuQ4IchGeU=";
+    stripRoot = false;
+  };
+
+  nativeBuildInputs = kernel.moduleBuildDependencies;
+
+  preConfigure = "cd src";
+
+  configurePhase = "true";
+
+  buildFlags = [ "modules" ];
+
+  makeFlags =
+    [
+      "ARCH=${stdenv.hostPlatform.linuxArch}"
+      "KSRC=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
+    ]
+    ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+      "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
+    ];
+
+  installPhase = ''
+    mkdir -p $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/net/ethernet/motorcomm
+    cp src/yt6801.ko $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/net/ethernet/motorcomm/
+  '';
+
+  enableParallelBuilding = true;
+
+  meta = with lib; {
+    description = "Motorcomm yt6801 Network Interface Card driver";
+    homepage = "https://www.motor-comm.com/product/ethernet-control-chip";
+    license = with licenses; [
+      gpl2Plus
+      gpl2Only
+    ];
+    platforms = platforms.linux;
+  };
+}
\ No newline at end of file