anchor.diff:  
     buildInputs = [
       ell
  +    python3Packages.python
       readline
  -    python3Packages.python
     ];
   
     pythonPath = [
  
positive.code: 
    postFixup = ''
      substituteInPlace $out/share/dbus-1/system-services/net.connman.ead.service \
                        --replace /bin/false ${coreutils}/bin/false
      substituteInPlace $out/share/dbus-1/system-services/net.connman.iwd.service \
                        --replace /bin/false ${coreutils}/bin/false
    '';
  
    meta = with stdenv.lib; {
      homepage = https://git.kernel.org/pub/scm/network/wireless/iwd.git;
      description = "Wireless daemon for Linux";
      license = licenses.lgpl21;
      platforms = platforms.linux;
      maintainers = [ maintainers.mic92 ];
    };
  }
  
negative.code:   ];
  
    configureFlags = [
      "--enable-external-ell"
      "--enable-wired"
      "--localstatedir=/var/"
      "--with-dbus-busdir=${placeholder "out"}/share/dbus-1/system-services/"
      "--with-dbus-datadir=${placeholder "out"}/share/"
      "--with-systemd-modloaddir=${placeholder "out"}/etc/modules-load.d/" # maybe
      "--with-systemd-unitdir=${placeholder "out"}/lib/systemd/system/"
    ];
  
    postUnpack = ''
  