anchor.diff:      gtk3
       libcanberra-gtk3
       libgee
  +    libhandy
     ];
   
     postPatch = ''
  
positive.code: 
  stdenv.mkDerivation rec {
    pname = "elementary-notifications";
    version = "unstable-2020-03-31";
  
    repoName = "notifications";
  
    src = fetchFromGitHub {
      owner = "elementary";
      repo = repoName;
      rev = "db552b0c3466ba1099c7737c353b7225ab1896cc";
      sha256 = "1fhf4zx73qka935x5afv6zqsm2l37d1mjbhrbzzzz44dqwa2vp16";
    };
  
    nativeBuildInputs = [
  
negative.code: , glib
  , granite
  , libgee
  , libhandy
  , libcanberra-gtk3
  , pantheon
  , python3
  