anchor.diff:    src  = fetchurl {
       url  = "https://download-cdn.resilio.com/${version}/"
         + "linux-x64/resilio-sync_x64.tar.gz";
  -    sha256 = "831596e3969bf1a8dd4c5a2412b46d76e34e38df36570ff24791b3f771da8833";
  +    sha256 = "2940e7684b06ac21f2643eed63d20b5662b31731bf28e8e642fccfd3ebd59ad6";
     };
   
     nativeBuildInputs = [
  
positive.code: { stdenv
  , fetchurl
  , patchelf
  }:
  
  let
    inherit (stdenv.lib)
      makeSearchPath;
  
    libPath = makeSearchPath "lib" [
      stdenv.cc.libc
    ];
  
    version = "2.4.5";
  in
  stdenv.mkDerivation rec {
    name = "resilio-${version}";
  
negative.code:   # FIXME
    sourceDateEpochWarn = true;
  
    meta = with lib; {
      description = "Automatically sync files via secure, distributed technology";
      homepage = https://www.resilio.com/individuals/;
      license = licenses.unfreeRedistributable;
  