{
  pkgs ? import <nixpkgs> {}
, lib ? pkgs.lib
, extend ? pkgs.extend
}:
let
  extendedAttrs = extend (final: prev: {
    localOutputs = {
      manifests = final.callPackage ./packages/manifests {};
      oci-image = final.callPackage ./packages/oci-image {};
    };
  });
in
  extendedAttrs.localOutputs