add: home-manager,hyprland,kitten and other extras

nixos/hardware/graphics/amd.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+
+{
+  hardware.graphics.extraPackages = with pkgs; [
+    amdvlk
+    rocmPackages.clr.icd
+  ];
+
+  services.xserver.videoDrivers = [ "amdgpu" ];
+}

nixos/hardware/graphics/default.nix

@@ -0,0 +1,28 @@
+{ config, lib, pkgs, ... }:
+
+let
+  driver = config.elars.hardware.graphics.driver;
+in {
+  options.elars.hardware.graphics.driver = lib.mkOption {
+    type = lib.types.enum [ "intel" "amd" "nvidia" "hybrid-amd-nvidia" ];
+    default = "intel";
+  };
+
+  config = lib.mkMerge [
+    {
+      hardware.graphics = {
+        enable = true;
+        enable32Bit = true;
+      };
+    }
+
+    (lib.mkIf (driver == "intel")              (import ./intel.nix { inherit config lib pkgs; }))
+    (lib.mkIf (driver == "amd")                (import ./amd.nix   { inherit config lib pkgs; }))
+    (lib.mkIf (driver == "nvidia")             (import ./nvidia.nix { inherit config lib pkgs; }))
+    (lib.mkIf (driver == "hybrid-amd-nvidia")  (lib.mkMerge [
+      (import ./amd.nix    { inherit config lib pkgs; })
+      (import ./nvidia.nix { inherit config lib pkgs; })
+      (import ./prime.nix  { inherit config lib pkgs; })
+    ]))
+  ];
+}

nixos/hardware/graphics/intel.nix

@@ -0,0 +1,21 @@
+{ config, lib, pkgs, ... }:
+
+{
+  hardware.graphics.extraPackages = with pkgs; [
+    intel-vaapi-driver
+    libvdpau-va-gl
+    intel-media-driver
+  ];
+
+  hardware.graphics.extraPackages32 = with pkgs.pkgsi686Linux; [
+    intel-vaapi-driver
+    libvdpau-va-gl
+  ];
+
+  services.xserver.videoDrivers = [ "modesetting" ];
+
+  environment.variables = {
+    LIBVA_DRIVER_NAME = "i965";
+    VK_ICD_FILENAMES = "/run/opengl-driver/share/vulkan/icd.d/intel_hasvk_icd.x86_64.json";
+  };
+}

nixos/hardware/graphics/nvidia.nix

@@ -0,0 +1,12 @@
+{ config, ... }:
+
+{
+  services.xserver.videoDrivers = [ "nvidia" ];
+
+  hardware.nvidia = {
+    modesetting.enable = true;
+    open = false;  # for 20xx series make true for 30xx and newer
+    nvidiaSettings = true;
+    package = config.boot.kernelPackages.nvidiaPackages.stable;
+  };
+}

nixos/hardware/graphics/prime.nix

@@ -0,0 +1,9 @@
+{ config, lib, pkgs, ... }:
+
+{
+  hardware.nvidia.prime = {
+    offload.enable = true;
+    amdgpuBusId = "PCI:X:X:X";  # TODO
+    nvidiaBusId = "PCI:X:X:X";  # TODO
+  };
+}