diff --git a/modules/packages.nix b/modules/packages.nix
index 05fea46..a6a22c5 100644
--- a/modules/packages.nix
+++ b/modules/packages.nix
@@ -1,45 +1,22 @@
 { config, lib, flake-parts-lib, ... }:
 let
   inherit (lib)
-    filterAttrs
-    mapAttrs
     mkOption
-    optionalAttrs
     types
     ;
   inherit (flake-parts-lib)
-    mkSubmoduleOptions
-    mkPerSystemOption
+    mkTransposedPerSystemModule
     ;
 in
-{
-  options = {
-    flake = mkSubmoduleOptions {
-      packages = mkOption {
-        type = types.lazyAttrsOf (types.lazyAttrsOf types.package);
-        default = { };
-        description = ''
-          Per system an attribute set of packages.
-          <literal>nix build .#&lt;name></literal> will build <literal>packages.&lt;system>.&lt;name></literal>.
-        '';
-      };
-    };
-
-    perSystem = mkPerSystemOption ({ config, ... }: {
-      _file = ./packages.nix;
-      options = {
-        packages = mkOption {
-          type = types.lazyAttrsOf types.package;
-          default = { };
-          description = ''
-            An attribute set of packages to be built by <literal>nix build .#&lt;name></literal>.
-            <literal>nix build .#&lt;name></literal> will build <literal>packages.&lt;name></literal>.
-          '';
-        };
-      };
-    });
-  };
-  config = {
-    transposition.packages = { };
+mkTransposedPerSystemModule {
+  name = "packages";
+  option = mkOption {
+    type = types.lazyAttrsOf types.package;
+    default = { };
+    description = ''
+      An attribute set of packages to be built by <literal>nix build .#&lt;name></literal>.
+      <literal>nix build .#&lt;name></literal> will build <literal>packages.&lt;name></literal>.
+    '';
   };
+  file = ./packages.nix;
 }