Added nvidia drivers and gaming profile

README.org

@@ -85,3 +85,9 @@ nixos-generate-config --dir <<host directory>> --no-filesystems
 #+BEGIN_SRC bash
 sudo nixos-install --impure --root /mnt --flake .#reykjavik
 #+END_SRC
+
+1. Set up the user
+You'll set the root password during the installation. You can then reboot and use the installed OS. First thing you'll have to do is log in as root and set the password for your user:
+#+BEGIN_SRC bash
+passwd marc
+#+END_SRC

flake.nix

@@ -51,6 +51,7 @@
         # - Reykjavik ----------------------------
         reykjavik = lib.nixosSystem {
           inherit system;
+          inherit pkgs;
           modules = [
 
             ./system/modules

home/hosts/reykjavik.nix

@@ -6,6 +6,7 @@
   samfelag = {
     profiles = {
       desktop.enable = true;
+      gaming.enable = true;
     };
   };
 }

home/profiles/default.nix

@@ -4,5 +4,6 @@
   imports = [
    ./common.nix
    ./desktop.nix
+   ./gaming.nix
   ];
 }

home/profiles/gaming.nix

@@ -0,0 +1,24 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.samfelag.profiles.gaming;
+in
+{
+  options.samfelag.profiles.gaming = {
+    enable = mkEnableOption "gaming profile";
+  };
+
+  config = mkIf cfg.enable {
+
+    # - Dependencies -----------------------------
+
+    samfelag.modules = {
+    };
+
+    home.packages = with pkgs; [
+      lutris
+    ];
+
+  };
+}

system/hosts/reykjavik/default.nix

@@ -3,6 +3,7 @@
 {
   imports = [
     ./hardware.nix
+    ./nvidia.nix
   ];
 
   # - Basic --------------------------------------
@@ -19,9 +20,12 @@
 
   # - Services -----------------------------------
 
-  samfelag.profiles.desktop = {
+  samfelag.profiles = {
-    enable = true;
+    desktop = {
-    laptop = true;
+      enable = true;
+      laptop = true;
+    };
+    gaming.enable = true;
   };
 
   system.stateVersion = "22.05";

system/hosts/reykjavik/nvidia.nix

@@ -0,0 +1,29 @@
+{ 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 "$@"
+  '';
+in
+{
+  environment.systemPackages = [ nvidia-offload ];
+
+  services.xserver.videoDrivers = [ "nvidia" ];
+
+  hardware.opengl.enable = true;
+  hardware.nvidia.package = config.boot.kernelPackages.nvidiaPackages.stable;
+
+  hardware.nvidia.prime = {
+    offload.enable = true;
+
+    # Bus ID of the Intel GPU. You can find it using lspci, either under 3D or VGA
+    intelBusId = "PCI:0:2:0";
+
+    # Bus ID of the NVIDIA GPU. You can find it using lspci, either under 3D or VGA
+    nvidiaBusId = "PCI:1:0:0";
+  };
+}

system/profiles/default.nix

@@ -4,5 +4,6 @@
   imports = [
    ./common.nix
    ./desktop.nix
+   ./gaming.nix
   ];
 }

system/profiles/gaming.nix

@@ -0,0 +1,19 @@
+{ config, pkgs, lib, ... }:
+
+let
+  cfg = config.samfelag.profiles.gaming;
+in
+{
+  options.samfelag.profiles.gaming = {
+
+    enable = lib.mkEnableOption "gaming profile";
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.steam = {
+      enable = true;
+      remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
+      dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
+    };
+  };
+}