{
  description = "Open source ARC implementation";

  inputs.nixpkgs.url = "github:NixOS/nixpkgs-channels?rev=c59ea8b8a0e7f927e7291c14ea6cd1bd3a16ff38";
  inputs.openarc.url = "github:trusteddomainproject/OpenARC?rev=355ee2a1ca85acccce494478991983b54f794f4e";
  inputs.openarc.flake = false;

  outputs = { self, openarc, nixpkgs }: {

    packages.x86_64-linux.openarc = with nixpkgs.legacyPackages.x86_64-linux;
      stdenv.mkDerivation rec {
        pname = "openarc";
        version = "355ee2a-master";
        name = "${pname}-${version}";
        src = openarc;
        buildInputs = [ automake autoconf libbsd libtool openssl pkg-config libmilter ];

        configureFlags = [
          "--with-milter=${libmilter}"
        ];
        preConfigure = ''
          autoreconf --force --install
          sed -i -e "s@/usr/bin/file@${file}/bin/file@" ./configure
          '';
        meta = with stdenv.lib; {
          description = "Open source ARC implementation";
          homepage = "https://github.com/trusteddomainproject/OpenARC";
          platforms = platforms.unix;
        };
      };

    defaultPackage.x86_64-linux = self.packages.x86_64-linux.openarc;

  };
}