anchor.diff:      installFlags = buildFlags;
   
       meta = with lib; {
  -      homepage = "https://github.com/jbrundiers/vdr-plugin-markad";
  +      homepage = "https://github.com/kfb77/vdr-plugin-markad";
         description = "MarkAd marks advertisements in VDR recordings.";
         maintainers = [ maintainers.ck3d ];
         license = licenses.gpl2;
  
positive.code: 
    markad = stdenv.mkDerivation rec {
      pname = "vdr-markad";
      version = "2.0.4";
  
      src = fetchFromGitHub {
        repo = "vdr-plugin-markad";
        owner = "jbrundiers";
        sha256 = "sha256-Y4KsEtUq+KoUooXiw9O9RokBxNwWBkiGB31GncmHkYM=";
        rev = "288e3dae93421b0176f4f62b68ea4b39d98e8793";
      };
  
      buildInputs = [ vdr libav ];
  
      postPatch = ''
        substituteInPlace command/Makefile --replace '/usr' ""
  
negative.code: { lib, stdenv, fetchurl, fetchgit, vdr, fetchFromGitHub
  , graphicsmagick, pcre, xorgserver, ffmpeg
  , libiconv, boost, libgcrypt, perl, util-linux, groff, libva, xorg, ncurses
  , callPackage
  }: let
  