refactor(flake-parts): initial flake-parts configuration

inputs/system/modules/base/host/hardware/gpu/amd/default.nix

@@ -0,0 +1,29 @@
+{ config, lib, pkgs, ... }:
+
+let
+  gpu = config.systemModules.host.hardware.gpu;
+  inherit (lib) mkIf mkDefault;
+  inherit (builtins) elem;
+in
+
+{
+  config = mkIf (elem gpu.type ["amd"]) {
+    hardware.opengl = {
+      extraPackages = with pkgs; [
+        vulkan-tools
+        vulkan-loader
+        vulkan-extension-layer
+        vulkan-validation-layers
+        # amdvlk
+        mesa
+      ];
+      extraPackages32 = [ pkgs.driversi686Linux.amdvlk ];
+    };
+    boot = {
+      initrd.kernelModules = ["amdgpu"];
+      kernelModules = ["amdgpu"];
+    };
+    environment.systemPackages = [ pkgs.nvtopPackages.amd ];
+    services.xserver.videoDrivers = mkDefault ["modesetting" "amdgpu"];
+  };
+}

inputs/system/modules/base/host/hardware/gpu/default.nix

@@ -0,0 +1,19 @@
+{ lib, ... }:
+
+let
+  inherit (lib) types mkOption;
+in
+
+{
+  imports = [
+    ./amd
+    ./intel
+    ./nvidia
+  ];
+
+  options.systemModules.host.hardware.gpu.type = mkOption {
+    type = with types; nullOr (enum ["intel" "amd" "nvidia"]);
+    default = null;
+    description = "Type of gpu system module to use";
+  };
+}

inputs/system/modules/base/host/hardware/gpu/intel/default.nix

@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }:
+
+let
+  gpu = config.systemModules.host.hardware.gpu;
+  inherit (lib) mkIf;
+  inherit (builtins) elem;
+
+  # vaapiIntel = pkgs.vaapiIntel.override {enableHybridCodec = true;};
+in
+
+{
+  config = mkIf (elem gpu.type ["intel"]) {
+    
+    services.xserver.videoDrivers = ["modesetting"];
+    hardware.opengl = {
+      extraPackages = with pkgs; [
+        vaapiIntel
+        vaapiVdpau
+        libvdpau-va-gl
+
+        intel-compute-runtime
+        intel-media-driver
+      ];
+      extraPackages32 = with pkgs.pkgsi686Linux; [
+        vaapiIntel
+        vaapiVdpau
+        libvdpau-va-gl
+
+        intel-media-driver
+      ];
+    };
+    boot.initrd.kernelModules = ["i915"];    
+    environment.variables = mkIf config.hardware.opengl.enable {
+      VDPAU_DRIVER = "va_gl";
+    };
+  };
+}

inputs/system/modules/base/host/hardware/gpu/nvidia/default.nix

@@ -0,0 +1,51 @@
+{ config, lib, pkgs, ... }:
+
+let
+  gpu = config.systemModules.host.hardware.gpu;
+  inherit (lib) mkIf mkDefault;
+  inherit (builtins) elem;
+  production = config.boot.kernelPackages.nvidiaPackages.production;
+  # beta = config.boot.kernelPackages.nvidiaPackages.beta;
+in
+
+{
+# TODO: make option to choose nvidia package
+  config = mkIf (elem gpu.type ["nvidia"]) {
+    hardware = {
+      nvidia = {
+        open = mkDefault true;
+        package = production;
+        forceFullCompositionPipeline = true;
+        nvidiaSettings = false;
+        nvidiaPersistenced = true;
+        modesetting.enable = true;
+        powerManagement = {
+          enable = mkDefault true;
+          finegrained = mkDefault false;
+        };
+      };
+      opengl = {
+        extraPackages = with pkgs; [ nvidia-vaapi-driver ];
+        extraPackages32 = with pkgs.pkgsi686Linux; [ nvidia-vaapi-driver ];
+      };
+    };
+    environment.systemPackages = with pkgs; [
+
+      libva
+      libva-utils
+
+      vulkan-loader
+      vulkan-validation-layers
+      vulkan-tools
+      vulkan-extension-layer
+
+      mesa
+
+      nvtopPackages.nvidia
+    ];
+    environment.sessionVariables = {
+      LIBVA_DRIVER_NAME = "nvidia";
+      NVD_BACKEND = "direct";
+    };
+  };
+}