{inputs, ...}: {

  flake-inputs = final: _: {
    inputs =
      builtins.mapAttrs (
        _: flake: let
          legacyPackages = (flake.legacyPackages or {}).${final.system} or {};
          packages = (flake.packages or {}).${final.system} or {};
        in
          if legacyPackages != {}
          then legacyPackages
          else packages
      )
      inputs;
  };

  additions = final: _prev: import ../pkgs final.pkgs;

  modifications = final: prev: {
  };

}