Added NixOS configs

Hardware/graphicshit.nix

@@ -0,0 +1,30 @@
+{lib, config, pkgs, ... }:
+let
+  nvidia-offload = pkgs.writeShellScriptBin "nvidia-offload" ''
+    export __NV_PRIME_RENDER_OFFLOAD=1
+    export __NV_PRIME_RENDER_OFFLOAD_PROVIDER=NVIDIA-G0
+    export __GLX_VENDOR_LIBRARY_NAME=nvidia
+    export __VK_LAYER_NV_optimus=NVIDIA_only
+    exec -a "$0" "$@"
+  '';
+in
+  {
+    environment.systemPackages = with pkgs; [
+      nvidia-offload
+    ];
+    hardware = {
+      opengl = {
+        driSupport32Bit = true;
+        #package = pkgs.mesa_drivers;
+        enable = true;
+      };
+      nvidia = {
+        prime = {
+          offload = { enable = true; };
+          intelBusId = "PCI:0:2:0";
+          nvidiaBusId = "PCI:1:0:0";
+        };
+        modesetting = { enable = true; };
+      };
+    };
+  }