anchor.diff:      description = "Desktop integration portals for sandboxed apps";
       maintainers = with maintainers; [ jtojnar ];
       platforms = platforms.linux;
  -    license = licenses.lgpl21;
  +    license = licenses.lgpl2Plus;
     };
   }
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "xdg-desktop-portal-gtk";
    version = "1.7.1";
  
    src = fetchFromGitHub {
      owner = "flatpak";
      repo = pname;
      rev = version;
      sha256 = "183iha9dxmvprn99ymgz17jx1lyn1fj5jyj6ghxl716zn9mxmird";
    };
  
    nativeBuildInputs = [
      autoreconfHook
      libxml2
      pkgconfig
      wrapGAppsHook
      xdg-desktop-portal
    ];
  
negative.code: { stdenv
  , fetchFromGitHub
  , autoreconfHook
  , pkg-config
  , libxml2
  , xdg-desktop-portal
  , gtk3
  