anchor.diff:      granite
       gtk3
       libgee
  +    libhandy
     ];
   
     postPatch = ''
  
positive.code: { lib, stdenv
  , fetchFromGitHub
  , nix-update-script
  , pantheon
  , pkg-config
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "elementary-calculator";
    version = "1.7.0";
  
    repoName = "calculator";
  
  