added a home-manager stylix module that gets enabled when nixos stylix is enabled

home/default.nix

···
     ./ghostty.nix
     ./nushell.nix
     ./vcs.nix
+    ./stylix.nix
   ];
 }

home/firefox.nix

···
 {
-  lib,
   pkgs,
-  osConfig,
   ...
 }:
 let
   engines = import ./engines.nix;
 in
 {
-  stylix.targets = lib.mkIf osConfig.freyjaModules.stylix.enable {
-    firefox = {
-      firefoxGnomeTheme.enable = true;
-      profileNames = [ "default" ];
-    };
-  };
-
   programs.firefox = {
     enable = true;
     package = pkgs.firefox.override {

home/stylix.nix

···
+{
+  config,
+  lib,
+  ...
+}:
+{
+  options.freyjaHome.stylix.enable = lib.mkEnableOption "Enable stylix config for home";
+
+  config = lib.mkIf config.freyjaHome.stylix.enable {
+    stylix.targets = {
+      firefox = {
+        firefoxGnomeTheme.enable = true;
+        profileNames = [ "default" ];
+      };
+    };
+  };
+}

modules/stylix.nix

···
       };
 
     };
+
+    home-manager.sharedModules = [
+      {
+        config.freyjaHome.stylix.enable = true;
+      }
+    ];
   };
 }