feat(nixosmodules): add udisks2

modules/nixos/hardware.nix

@@ -0,0 +1,87 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  moduleName = "hardware-config";
+  cfg = config."${moduleName}";
+in
+{
+  options = {
+    "${moduleName}" = {
+      cpu = lib.mkOption {
+        type = lib.types.str;
+        default = "";
+        example = "amd";
+        description = "What CPU is being used.";
+      };
+      gpu = lib.mkOption {
+        type = lib.types.str;
+        default = "";
+        example = "nvidia";
+        description = "What GPU is being used.";
+      };
+      usbAutoMount = lib.mkEnableOption "Enable auto mounting USB drives.";
+    };
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf (cfg.cpu != "") {
+      nixpkgs.hostPlatform = lib.mkIf (cfg.cpu == "amd" || cfg.cpu == "intel") "x86_64-linux";
+      # CPU Settings
+      boot.kernelModules =
+        lib.optionals (cfg.cpu == "intel") [ "kvm-intel" ]
+        ++ lib.optionals (cfg.cpu == "amd") [ "kvm-amd" ];
+      hardware.cpu =
+        lib.mkIf (cfg.cpu == "intel") { intel.updateMicrocode = true; }
+        // lib.mkIf (cfg.cpu == "amd") { amd.updateMicrocode = true; };
+    })
+    (lib.mkIf (cfg.gpu == "nvidia") {
+      # Accept the license by default; needed for some packages.
+      nixpkgs.config.nvidia.acceptLicense = true;
+      nix.settings = {
+        substituters = [ "https://cuda-maintainers.cachix.org" ];
+        trusted-public-keys = [
+          "cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E="
+        ];
+      };
+      services.xserver.videoDrivers = [ "nvidia" ];
+      environment.variables = {
+        GBM_BACKEND = "nvidia-drm";
+        LIBVA_DRIVER_NAME = "nvidia";
+        __GLX_VENDOR_LIBRARY_NAME = "nvidia";
+      };
+      hardware = {
+        enableRedistributableFirmware = true;
+        nvidia-container-toolkit.enable = true;
+        graphics = {
+          enable = true;
+          extraPackages = with pkgs; [
+            nvidia-vaapi-driver # hardware acceleration
+          ];
+        };
+        nvidia = {
+          modesetting.enable = true;
+          open = false;
+          nvidiaSettings = true;
+          nvidiaPersistenced = true;
+          package = config.boot.kernelPackages.nvidiaPackages.latest;
+        };
+      };
+      boot.initrd.availableKernelModules = [
+        "nvidia"
+        "nvidia_modeset"
+        "nvidia_uvm"
+        "nvidia_drm"
+      ];
+    })
+    (lib.mkIf cfg.usbAutoMount {
+      services.udisks2 = {
+        enable = true;
+        mountOnMedia = true;
+      };
+    })
+  ];
+}