some hyprland changes and nvidia drivers

nix/configuration.nix

@@ -26,6 +26,8 @@
 
   # networking.hostName = "nixos"; # Define your hostname.
 
+  nixpkgs.config.allowUnfree = true;
+
   # Configure network connections interactively with nmcli or nmtui.
   networking.networkmanager.enable = true;
 
@@ -61,7 +63,44 @@
 
   programs.hyprland.enable = true;
 
-  
+  # Enable OpenGL
+  hardware.graphics = {
+    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+
+    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.latest;
+  };
 
   # Configure keymap in X11
   # services.xserver.xkb.layout = "us";