anchor.diff:  
     src = fetchurl {
       url = "https://github.com/ramboxapp/download/releases/download/v${version}/RamboxPro-${version}-linux-x64.tar.gz";
  -    sha256 = "1zzlfk86gzg20qapqz9s8p9vmak8vj1smkwn9yrzs2yisfqh0gpc";
  +    sha256 = "1cy4h2yzrpr3gxd16p4323w06i67d82jjlyx737c3ngzw7aahmq1";
     };
   
     installPhase = ''
  
positive.code: 
    meta = with stdenv.lib; {
      description = "Messaging and emailing app that combines common web applications into one";
      homepage = https://rambox.pro;
      license = licenses.unfree;
      maintainers = with maintainers; [ chrisaw ];
      platforms = [ "i686-linux" "x86_64-linux" ];
  
negative.code: 
  stdenv.mkDerivation rec {
    pname = "rambox-pro";
    version = "1.3.1";
  
    dontBuild = true;
    dontStrip = true;
  