add den pattern

modules/system/btop.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.btop.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      btop
+    ];
+  };
+}

modules/system/bubblewrap.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.bubblewrap.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      bubblewrap
+    ];
+  };
+}

modules/system/default.nix

@@ -0,0 +1,6 @@
+{ lib, ... }: {
+  imports = lib.mapAttrsToList
+    (file: _: ./. + "/${file}")
+    (lib.filterAttrs (file: _: lib.hasSuffix ".nix" file && file != "default.nix")
+      (builtins.readDir ./.));
+}

modules/system/garbage-collection.nix

@@ -0,0 +1,17 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.garbage-collection.enable or true)) {
+    nix = {
+      settings.auto-optimise-store = true;
+      gc = {
+        automatic = true;
+        dates = "weekly";
+        options = "--delete-older-than 7d";
+      };
+    };
+  };
+}

modules/system/yazi.nix

@@ -0,0 +1,12 @@
+{ config, lib, pkgs, ... }:
+
+let
+  dirModules = config.features.modules.system or { };
+in
+{
+  config = lib.mkIf ((dirModules.enable or false) && (dirModules.yazi.enable or true)) {
+    environment.systemPackages = with pkgs; [
+      yazi
+    ];
+  };
+}