diff --git a/config/modules/home-manager.nix b/config/modules/home-manager.nix
index eb1ce14..6d79223 100644
--- a/config/modules/home-manager.nix
+++ b/config/modules/home-manager.nix
@@ -1,9 +1,13 @@
-{ system, inputs }:
-inputs.home-manager.nixosModules.home-manager
+{ system, inputs, ... }:
 {
-  home-manager.useGlobalPkgs = true;
-  home-manager.useUserPackages = true;
-  home-manager.backupFileExtension = "backup";
-  home-manager.users.alex = import ./config/users/alex;
-  home-manager.extraSpecialArgs = { ff = inputs.firefox-addons.packages.${system}; };
+  modules = [
+    inputs.home-manager.nixosModules.home-manager
+    {
+      home-manager.useGlobalPkgs = true;
+      home-manager.useUserPackages = true;
+      home-manager.backupFileExtension = "backup";
+      home-manager.users.alex = import ./config/users/alex;
+      home-manager.extraSpecialArgs = { ff = inputs.firefox-addons.packages.${system}; };
+    }
+  ];
 }
diff --git a/config/users/alex/default.nix b/config/users/alex/default.nix
index b760dd5..c8c309b 100644
--- a/config/users/alex/default.nix
+++ b/config/users/alex/default.nix
@@ -74,6 +74,7 @@
         extensions = with ff; [
           darkreader
           multi-account-containers
+          simple-tab-groups
           ublock-origin
           umatrix
         ];
diff --git a/flake.nix b/flake.nix
index 8f06843..6a313f0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,6 +22,17 @@
   };
 
   outputs = { self, nixpkgs, home-manager, firefox-addons, ... }@inputs:
+    let
+      hmModule = system: (
+        home-manager.nixosModules.home-manager {
+          home-manager.useGlobalPkgs = true;
+          home-manager.useUserPackages = true;
+          home-manager.backupFileExtension = "backup";
+          home-manager.users.alex = import ./config/users/alex;
+          home-manager.extraSpecialArgs = { ff = firefox-addons.packages.${system}; };
+        }
+      );
+    in
     {
       nixosConfigurations = {
         ## ---- personal computers (linux) ----
@@ -44,8 +55,9 @@
           system = "x86_64-linux";
           modules = [
             ./config/systems/thelio76
-            ./config/modules/home-manager.nix
-            { inherit system inputs; }
+            (import ./config/modules/home-manager.nix {
+              inherit system inputs;
+            })
             # home-manager.nixosModules.home-manager
             # {
             #   home-manager.useGlobalPkgs = true;