anchor.diff:  
     src = fetchurl {
       url = "https://linux.dropboxstatic.com/packages/nautilus-dropbox-${version}.tar.bz2";
  -    sha256 = "09yg7q45sycl88l3wq0byz4a9k6sxx3m0r3szinvisfay9wlj35f";
  +    sha256 = "1jjc835n2j61d23kvygdb4n4jsrw33r9mbwxrm4fqin6x01l2w7k";
     };
   
     strictDeps = true;
  
positive.code: }:
  
  let
    version = "2019.02.14";
    dropboxd = "${dropbox}/bin/dropbox";
  in
  stdenv.mkDerivation {
  
negative.code:   ];
  
    meta = {
      homepage = "https://www.dropbox.com";
      description = "Command line client for the dropbox daemon";
      license = stdenv.lib.licenses.gpl3Plus;
      maintainers = with stdenv.lib.maintainers; [ the-kenny ];
  