anchor.diff:  { lib
   , stdenv
  +, fetchFromGitHub
  +, buildPythonPackage
   , rustPlatform
  -, fetchFromGitHub
  -, pipInstallHook
   , llvmPackages
   , pkg-config
   , maturin
   , pcsclite
   , nettle
  -, python
   , requests
   , vcrpy
   , numpy
  
positive.code: , PCSC
  }:
  
  rustPlatform.buildRustPackage rec {
    pname = "johnnycanencrypt";
    version = "0.5.0";
    disabled = pythonOlder "3.7";
  
negative.code:   nativeBuildInputs = [
      llvmPackages.clang
      pkg-config
    ] ++ (with rustPlatform; [
      cargoSetupHook
      maturinBuildHook
    ]);
  
    buildInputs = [
      pcsclite
  