add (host options): add basic host options

options/host/locale.nix

@@ -0,0 +1,43 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  cfg = config.host.locale;
+in
+{
+  options = {
+    host.locale = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Basic locale settings.";
+      };
+
+      timeZone = lib.mkOption {
+        type = lib.types.str;
+        default = "America/New_York";
+        description = "Time Zone Locale.";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    i18n.defaultLocale = "en_US.UTF-8";
+    i18n.extraLocaleSettings = {
+      LC_ADDRESS = "en_US.UTF-8";
+      LC_IDENTIFICATION = "en_US.UTF-8";
+      LC_MEASUREMENT = "en_US.UTF-8";
+      LC_MONETARY = "en_US.UTF-8";
+      LC_NAME = "en_US.UTF-8";
+      LC_NUMERIC = "en_US.UTF-8";
+      LC_PAPER = "en_US.UTF-8";
+      LC_TELEPHONE = "en_US.UTF-8";
+      LC_TIME = "en_US.UTF-8";
+    };
+
+    time.timeZone = cfg.timeZone;
+  };
+}

options/host/network_manager.nix

@@ -0,0 +1,25 @@
+{ lib, config, ... }:
+let
+  cfg = config.host.xserver;
+in
+{
+  options = {
+    host.xserver = {
+      enable = lib.mkOption {
+        types = lib.types.bool;
+        default = true;
+        description = "Xserver configurations for host.";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.xserver = {
+      enable = true;
+      xkb = {
+        layout = "us";
+        variant = "";
+      };
+    };
+  };
+}

options/host/nix.nix

@@ -0,0 +1,44 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  cfg = config.host.nix;
+in
+{
+  options = {
+    host.nix = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Nix settings for host.";
+      };
+      optimization.enable = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "Nix store optimization.";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    nix = {
+      package = pkgs.nix;
+
+      settings = {
+        warn-dirty = false;
+        experimental-features = [
+          "flakes"
+          "nix-command"
+          "pipe-operators"
+        ];
+      };
+
+      optimise = lib.mkIf cfg.optimization.enable {
+        automatic = true;
+      };
+    };
+  };
+}

options/host/polkit.nix

@@ -0,0 +1,27 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  cfg = config.host.polkit;
+in
+{
+  options = {
+    host.polkit = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        description = "Polkit configurations for host.";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    security.polkit = {
+      enable = true;
+      package = pkgs.polkit;
+    };
+  };
+}

options/host/version.nix

@@ -0,0 +1,20 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  cfg = config.host.version;
+in
+{
+  options = {
+    host.version = lib.mkOption {
+      type = lib.types.str;
+      default = "25.05";
+      description = "System version.";
+    };
+  };
+
+  config.system.stateVersion = cfg;
+}

options/host/window_managers.nix

@@ -0,0 +1,58 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}:
+let
+  cfg = config.host.window_managers.kde;
+in
+{
+  options = {
+    host.window_managers.kde = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "KDE Clear configurations for host.";
+      };
+      sddm.enable = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+        description = "SDDM configurations for host.";
+      };
+
+      powerProfiles.enable = lib.mkOption {
+        type = lib.types.bool;
+        default = !config.device.battery.enable;
+        description = "Power Profiles Daemon configurations for host.";
+      };
+    };
+  };
+
+  config = mkIf cfg.enable {
+    services.desktopManager.plasma6.enable = true;
+
+    environment.plasma6.excludePackages = with pkgs.kdePackages; [
+      kate
+      elisa
+      konsole
+      kdepim-runtime
+      plasma-browser-integration
+    ];
+
+    environment.systemPackages = [
+      pkgs.wl-clipboard
+      pkgs.wayland-utils
+    ]
+    ++ lib.optional cfg.sddm.enable [
+      pkgs.kdePackages.sddm-kcm
+    ];
+
+    services.power-profiles-daemon.enable = cfg.powerProfiles.enable;
+
+    services.displayManager.sddm = lib.mkIf cfg.sddm.enable {
+      enable = true;
+      wayland.enable = true;
+    };
+  };
+}

options/host/xserver.nix

@@ -0,0 +1,25 @@
+{ lib, config, ... }:
+let
+  cfg = config.host.xserver;
+in
+{
+  options = {
+    host.xserver = {
+      enable = lib.mkOption {
+        types = lib.types.bool;
+        default = true;
+        description = "Xserver configurations for host.";
+      };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.xserver = {
+      enable = true;
+      xkb = {
+        layout = "us";
+        variant = "";
+      };
+    };
+  };
+}