{
  packageOverrides = pkgs: {
    strm = pkgs.callPackage ../odin/strm.nix {};
    rss2email = pkgs.rss2email.overridePythonAttrs (old: rec {
      src = pkgs.fetchFromGitHub {
        owner = "wking";
        repo = "rss2email";
        rev = "0489b589160306794f21341f767118abd91f4ece";
          sha256 = "02a4py7zx9ib49kijpjckya1pb8xlb3gmp7s1dybsdjmwqbdyzx7";
      };
    });

    haskell = pkgs.haskell // {
      packages = pkgs.haskell.packages // {
        ghc822 = pkgs.haskell.packages.ghc822.extend (selfH: superH: {
          ListLike = pkgs.haskell.lib.overrideCabal superH.ListLike (oldAttrs: {
            libraryHaskellDepends = (oldAttrs.libraryHaskellDepends or []) ++ (with selfH; [semigroups]);
          });
          buchhaltung = pkgs.haskell.lib.overrideCabal (superH.buchhaltung.override { inherit (selfH) ListLike; }) (oldAttrs: {
            buildDepends = (oldAttrs.buildDepends or []) ++ [ pkgs.makeWrapper ];
            postBuild = ''
              ${oldAttrs.postBuild or ""}
              wrapProgram $out/bin/buchhaltung \
                --prefix PATH : ${pkgs.lib.makeBinPath (with pkgs; [ aqbanking dbacl ])}
            '';
          });
        });
      };
    };

    inherit (pkgs.haskell.packages.ghc822) buchhaltung;
  } // (import ../utils/nix/default.nix) pkgs (import <nixpkgs> {});
}