restructured modules, toggling them, overlays

modules/default.nix

@@ -0,0 +1,40 @@
+{ pkgs, config, lib, inputs, outputs, myLib, ... }:
+let
+  cfg = config.myNixOS;
+
+  features = myLib.extendModules (name: {
+    extraOptions = {
+      myNixOS.${name}.enable =
+        lib.mkEnableOption "enable my ${name} configuration";
+    };
+    configExtension = config: (lib.mkIf cfg.${name}.enable config);
+  }) (myLib.filesIn ./features);
+
+  bundles = myLib.extendModules (name: {
+    extraOptions = {
+      myNixOS.bundles.${name}.enable =
+        lib.mkEnableOption "enable ${name} module bundle";
+    };
+    configExtension = config: (lib.mkIf cfg.bundles.${name}.enable config);
+  }) (myLib.filesIn ./bundles);
+
+  services = myLib.extendModules (name: {
+    extraOptions = {
+      myNixOS.services.${name}.enable =
+        lib.mkEnableOption "enable ${name} service";
+    };
+    configExtension = config: (lib.mkIf cfg.services.${name}.enable config);
+  }) (myLib.filesIn ./services);
+
+in {
+  imports = [ inputs.home-manager.nixosModules.home-manager ] ++ features
+    ++ bundles ++ services;
+  options.myNixOS = { sharedSettings = { }; };
+  config = {
+    nix.settings.experimental-features = [ "nix-command" "flakes" ];
+    nixpkgs = {
+      hostPlatform = lib.mkDefault "x86_64-linux";
+      config.allowUnfree = true;
+    };
+  };
+}