{ python, lib, packageOverrides ? (_: _: {}), ... } @ args:

let
  inherit (builtins) removeAttrs;
  inherit (lib) composeExtensions fold;
in

python.override ((removeAttrs args [ "lib" "python" ]) // {
  packageOverrides = fold composeExtensions python.packageOverrides
    [
      (final: super: with final; {
        hyperkitty = callPackage ./packages/hyperkitty {
          inherit (super) hyperkitty;
        };
      })
      packageOverrides
    ];
})