make re-exports explicit again

launch/default.nix

@@ -4,7 +4,7 @@
   pkgs ? import sources.nixpkgs {
     inherit system;
   },
-}@args:
+}:
 let
   inherit (pkgs) lib;
 in
@@ -16,7 +16,12 @@ in
       (import ./tf.nix { inherit lib pkgs; })
     ];
   };
+
+  # re-export inputs so they can be overridden granularly
+  # (they can't be accessed from the outside any other way)
+  inherit
+    sources
+    system
+    pkgs
+    ;
 }
-# re-export inputs so they can be overridden granularly
-# (they can't be accessed from the outside any other way)
-// args