anchor.diff:  
     buildInputs = [
       eglexternalplatform
  +    libGL
       libX11
       mesa
  -    libGL
       wayland
  +    wayland-protocols
     ];
   
     postFixup = ''
  
positive.code:     owner = "Nvidia";
      repo = pname;
      rev = version;
      sha256 = "sha256-pqpJ6Uo50BouBU0wGaL21VH5rDiVHKAvJtfzL0YInXU=";
    };
  
    depsBuildBuild = [
  
negative.code: 
  in stdenv.mkDerivation rec {
    pname = "egl-wayland";
    version = "1.1.9";
  
    outputs = [ "out" "dev" ];
  
  