refactor: 重构为多平台多用户架构，全面提升终端体验

- 新增 lib/ 辅助函数（mkNixos/mkDarwin/mkHome），消除硬编码 - 拆分 modules/ 为 nixos/darwin/shared 三层，支持跨平台共享 - 重构 home/ 为 shell/dev/theme 子模块，工具全部迁入用户级 - 深度配置 Tmux/FZF/Atuin/Bat/Eza/Btop/Lazygit/Starship - 添加 Catppuccin Mocha 统一主题、Nerd Fonts 声明式管理 - 新增 homeConfigurations 输出，支持非 NixOS 系统直装 - 新增 nix-darwin 输入，预留 macOS 扩展路径 - 新增 overlays/ 和 pkgs/ 自定义包基础设施 - 修正 nix-darwin URL（LnL7 → nix-darwin org）
2026-04-03 19:54:17 +08:00
parent 92c6535945
commit e92c7aee31
31 changed files with 827 additions and 391 deletions
@@ -0,0 +1,86 @@
+{ inputs }:
+
+let
+  inherit (inputs.nixpkgs) lib;
+
+  # Shared home-manager configuration block
+  homeManagerConfig = username: {
+    home-manager = {
+      useGlobalPkgs = true;
+      useUserPackages = true;
+      extraSpecialArgs = {
+        inherit inputs username;
+      };
+      users.${username} = import ../home;
+    };
+  };
+in
+{
+  # ── NixOS host builder ──────────────────────────────
+  mkNixos =
+    {
+      hostname,
+      system,
+      username,
+      extraModules ? [ ],
+    }:
+    lib.nixosSystem {
+      inherit system;
+      specialArgs = {
+        inherit inputs hostname username;
+      };
+      modules =
+        [
+          ../modules/shared
+          ../modules/nixos
+          inputs.home-manager.nixosModules.home-manager
+          inputs.catppuccin.nixosModules.catppuccin
+          (homeManagerConfig username)
+          { networking.hostName = hostname; }
+        ]
+        ++ extraModules;
+    };
+
+  # ── nix-darwin host builder ─────────────────────────
+  mkDarwin =
+    {
+      hostname,
+      system,
+      username,
+      extraModules ? [ ],
+    }:
+    inputs.nix-darwin.lib.darwinSystem {
+      inherit system;
+      specialArgs = {
+        inherit inputs hostname username;
+      };
+      modules =
+        [
+          ../modules/shared
+          ../modules/darwin
+          inputs.home-manager.darwinModules.home-manager
+          inputs.catppuccin.nixosModules.catppuccin
+          (homeManagerConfig username)
+          { networking.hostName = hostname; }
+        ]
+        ++ extraModules;
+    };
+
+  # ── Standalone Home Manager (no NixOS / no Darwin) ──
+  mkHome =
+    {
+      system,
+      username,
+    }:
+    inputs.home-manager.lib.homeManagerConfiguration {
+      pkgs = import inputs.nixpkgs {
+        inherit system;
+        config.allowUnfree = true;
+      };
+      extraSpecialArgs = {
+        inherit inputs username;
+        hostname = "standalone";
+      };
+      modules = [ ../home ];
+    };
+}