use gruvbox material

nixcfgs/modules/home/options.nix

@@ -1,55 +1,113 @@
 {
   lib,
   config,
+  pkgs,
   ...
-}: {
-  options.currentUser = {
-    defaultShell = lib.mkOption {
-      type = lib.types.enum ["zsh" "bash" "fish"];
-      default = "zsh";
-      description = "The default shell to use.";
+}: let
+  inherit (lib) mkOption types mkIf;
+  cfg = config.my; # 简写引用，方便后续使用
+in {
+  options.my = {
+    # === 软件生态配置 (Software Ecosystem) ===
+    desktop = {
+      preferredApps = {
+        shell = mkOption {
+          type = types.package;
+          default = pkgs.bash;
+          description = "The default shell package to use.";
+          example = pkgs.zsh;
+        };
+
+        interactiveShell = mkOption {
+          type = types.package;
+          default = pkgs.bash;
+          description = "The default interactive shell package. (spawn by terminal emulators)";
+          example = pkgs.fish;
+        };
+
+        terminal = {
+          package = mkOption {
+            type = types.package;
+            default = pkgs.alacritty;
+            description = "The default terminal emulator package.";
+            example = pkgs.kitty;
+          };
+
+          execArg = mkOption {
+            type = types.str;
+            default = "-e";
+            description = "The argument used to execute a command in the terminal.";
+          };
+        };
+
+        fileManager = {
+          gui = mkOption {
+            type = types.package;
+            default = pkgs.thunar;
+            description = "The default GUI file explorer.";
+            example = pkgs.kdePackages.dolphin;
+          };
+
+          tui = mkOption {
+            type = types.package;
+            default = pkgs.yazi;
+            description = "The default TUI file explorer.";
+            example = pkgs.ranger;
+          };
+        };
+      };
+
+      style = {
+        iconTheme = {
+          # 分离包和名称：有些包名和主题名不一致
+          package = mkOption {
+            type = types.package;
+            default = pkgs.kdePackages.breeze-icons;
+            description = "The package containing the icon theme.";
+            example = pkgs.papirus-icon-theme;
+          };
+          light = mkOption {
+            type = types.str;
+            default = "Breeze";
+            description = "The internal name of the icon theme (as used in GTK/QT settings).";
+            example = "Papirus-Light";
+          };
+          dark = mkOption {
+            type = types.str;
+            default = "Breeze-Dark";
+            description = "The internal name of the dark icon theme (as used in GTK/QT settings).";
+            example = "Papirus-Dark";
+          };
+        };
+      };
     };
 
-    defaultTerminal = lib.mkOption {
-      type = lib.types.str;
-      default = "ghostty";
-      description = "The default terminal emulator.";
-    };
+    # === 硬件/主机特性配置 (Hardware/Host Specifics) ===
+    hardware = {
+      # 使用 nullOr 允许该功能被完全禁用（如果在没有背光的台式机上）
+      keyboardBacklight = mkOption {
+        type = types.nullOr (types.submodule {
+          options = {
+            device = mkOption {
+              type = types.str;
+              description = "Device identifier for brightnessctl.";
+            };
+            step = mkOption {
+              type = types.str;
+              default = "5%"; # 稍微调小默认步进，更精细
+              description = "Step percentage/integer for brightness adjustment.";
+            };
+          };
+        });
+        default = null;
+        description = "Keyboard backlight configuration. Set to null to disable.";
+      };
 
-    defaultTerminalRunner = lib.mkOption {
-      type = lib.types.str;
-      default = config.currentUser.defaultTerminal;
-      description = "The default terminal emulator to run CLI softwares directly";
-    };
-
-    defaultExplorer = lib.mkOption {
-      type = lib.types.str;
-      default = "thunar";
-      description = "The default file explorer";
-    };
-
-    defaultTerminalExplorer = lib.mkOption {
-      type = lib.types.str;
-      default = "yazi";
-      description = "The default file explorer with TUI";
-    };
-
-    iconTheme = lib.mkOption {
-      type = lib.types.str;
-      default = "Breeze";
-      description = "Default icon theme";
-    };
-  };
-  options.currentHost = {
-    keyboardBacklightDevice = lib.mkOption {
-      type = lib.types.str;
-      default = "";
-      description = "Device Identifier that used for brightnessctl, get the identifier via brightnessctl --list";
-    };
-    keyboardBacklightStep = lib.mkOption {
-      type = lib.types.str;
-      default = "34%";
-      description = "Step to change keyboard backlight, integer or percentage accepted";
+      isHeadless = mkOption {
+        type = types.bool;
+        default = false;
+        description = "Whether the current host acts as a headless server.";
+      };
     };
   };
 }

nixcfgs/modules/nixos/programs/libvirt.nix

@@ -12,6 +12,8 @@
       runAsRoot = true;
       swtpm.enable = true;
     };
+    onShutdown = "shutdown";
+    onBoot = "ignore";
   };
   users.users.js0ny = {
     extraGroups = ["libvirtd"];