diff --git a/stylix/testbed/default.nix b/stylix/testbed/default.nix
index da52f7b6..9053dde2 100644
--- a/stylix/testbed/default.nix
+++ b/stylix/testbed/default.nix
@@ -14,6 +14,7 @@ let
 
         modules =
           [
+            (lib.modules.importApply ./modules/flake-parts.nix inputs)
             ./modules/common.nix
             ./modules/enable.nix
             ./modules/application.nix
diff --git a/stylix/testbed/modules/flake-parts.nix b/stylix/testbed/modules/flake-parts.nix
new file mode 100644
index 00000000..b821eaca
--- /dev/null
+++ b/stylix/testbed/modules/flake-parts.nix
@@ -0,0 +1,7 @@
+inputs:
+{ lib, ... }:
+{
+  home-manager.sharedModules = lib.singleton {
+    home.file.flake-parts.source = inputs.flake-parts;
+  };
+}