use some unstable pkgs, reorganize hw

modules/hardware/intel.nix

@@ -0,0 +1,39 @@
+{
+  lib,
+  config,
+  pkgs,
+  ...
+}: let
+  cfg = config.my.hardware.intel;
+in {
+  options.my.hardware.intel = {
+    cpu = lib.mkEnableOption "intel cpu";
+    iGpu = lib.mkEnableOption "intel integrated gpu";
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf cfg.cpu {
+      boot.kernelModules = ["kvm-intel"];
+      hardware.cpu.intel.updateMicrocode = true;
+    })
+    (lib.mkIf cfg.iGpu {
+      hardware.opengl = {
+        extraPackages = with pkgs; [
+          intel-media-driver
+          vaapiIntel
+          vaapiVdpau
+          libvdpau-va-gl
+        ];
+        extraPackages32 = with pkgs.pkgsi686Linux; [
+          intel-media-driver
+          vaapiIntel
+          vaapiVdpau
+          libvdpau-va-gl
+        ];
+      };
+      environment.systemPackages = with pkgs; [
+        unstable.nvtop-intel
+      ];
+    })
+  ];
+}