implementing modules for system applications

system/modules/hardware/bluetooth/default.nix

@@ -0,0 +1,20 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf mkEnableOption;
+  cfg = config.modules.hardware.bluetooth;
+in {
+  options = {
+    modules.hardware.bluetooth.enable = mkEnableOption "Enables bluetooth";
+  };
+  config = mkIf cfg.enable {
+    hardware = {
+      bluetooth = {
+        enable = true;
+        powerOnBoot = false;
+      };
+    };
+  };
+}

system/modules/hardware/graphics/amd/default.nix

@@ -0,0 +1,40 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf mkEnableOption;
+  cfg = config.modules.hardware.graphics.amd;
+in {
+  options = {
+    modules.hardware.graphics.amd.enable = mkEnableOption "Enables AMD graphics";
+  };
+  config = mkIf cfg.enable {
+    hardware = {
+      graphics = {
+        enable = true;
+        enable32Bit = true;
+        extraPackages = with pkgs; [
+          libva
+          vaapiVdpau
+          libvdpau-va-gl
+          amdvlk
+
+          # mesa
+          mesa
+
+          # vulkan
+          # vulkan-tools
+          # vulkan-loader
+          # vulkan-validation-layers
+          # vulkan-extension-layer
+        ];
+        extraPackages32 = with pkgs.pkgsi686Linux; [
+          vaapiVdpau
+          libvdpau-va-gl
+        ];
+      };
+    };
+  };
+}

system/modules/hardware/graphics/nvidia/default.nix

@@ -0,0 +1,39 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf mkEnableOption;
+  cfg = config.modules.hardware.graphics.nvidia;
+in {
+  options = {
+    modules.hardware.graphics.nvidia.enable = mkEnableOption "Enables NVidia graphics";
+  };
+  config = mkIf cfg.enable {
+    hardware = {
+      graphics = {
+        enable = true;
+        enable32Bit = true;
+        extraPackages = with pkgs; [
+          libva
+          vaapiVdpau
+          libvdpau-va-gl
+          intel-media-driver
+          nvidia-vaapi-driver
+        ];
+      };
+      nvidia = {
+        package = config.boot.kernelPackages.nvidiaPackages.beta;
+        # package = config.boot.kernelPackages.nvidiaPackages.stable;
+        modesetting.enable = true;
+        powerManagement = {
+          enable = false;
+          finegrained = false;
+        };
+        open = false;
+        nvidiaSettings = true;
+      };
+    };
+  };
+}

system/modules/hardware/logitech/default.nix

@@ -0,0 +1,20 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf mkEnableOption;
+  cfg = config.modules.hardware.logitech;
+in {
+  options = {
+    modules.hardware.logitech.enable = mkEnableOption "Enables logitech";
+  };
+  config = mkIf cfg.enable {
+    hardware = {
+      logitech.wireless = {
+        enable = true;
+        enableGraphical = true;
+      };
+    };
+  };
+}