add not working configuration

configuration.nix

@@ -119,6 +119,63 @@
     tlrc
   ];
 
+  # services.xserver.videoDrivers = ["nvidia"]; # this setting makes my computer crash
+
+
+  # Enable OpenGL
+  hardware.opengl = {
+    enable = true;
+  };
+
+  # Load nvidia driver for Xorg and Wayland
+  services.xserver.videoDrivers = ["nvidia"];
+
+  hardware.nvidia = {
+
+    # Modesetting is required.
+    modesetting.enable = true;
+
+    # Nvidia power management. Experimental, and can cause sleep/suspend to fail.
+    # Enable this if you have graphical corruption issues or application crashes after waking
+    # up from sleep. This fixes it by saving the entire VRAM memory to /tmp/ instead
+    # of just the bare essentials.
+    powerManagement.enable = false;
+
+    # Fine-grained power management. Turns off GPU when not in use.
+    # Experimental and only works on modern Nvidia GPUs (Turing or newer).
+    powerManagement.finegrained = false;
+
+    # Use the NVidia open source kernel module (not to be confused with the
+    # independent third-party "nouveau" open source driver).
+    # Support is limited to the Turing and later architectures. Full list of
+    # supported GPUs is at:
+    # https://github.com/NVIDIA/open-gpu-kernel-modules#compatible-gpus
+    # Only available from driver 515.43.04+
+    # Currently alpha-quality/buggy, so false is currently the recommended setting.
+    open = false;
+
+    # Enable the Nvidia settings menu,
+	# accessible via `nvidia-settings`.
+    nvidiaSettings = true;
+
+    # Optionally, you may need to select the appropriate driver version for your specific GPU.
+    # package = config.boot.kernelPackages.nvidiaPackages.stable;
+    package = config.boot.kernelPackages.nvidiaPackages.legacy_470;
+  };
+
+
+  hardware.nvidia.prime = {
+		offload = {
+			enable = true;
+			enableOffloadCmd = true;
+		};
+		# Make sure to use the correct Bus ID values for your system!
+		intelBusId = "PCI:0:2:0";
+		nvidiaBusId = "PCI:6:0:0";
+                # amdgpuBusId = "PCI:54:0:0"; For AMD GPU
+	};
+
+
   # Some programs need SUID wrappers, can be configured further or are
   # started in user sessions.
   # programs.mtr.enable = true;