anchor.diff: -{ lib, python3, fetchFromGitHub, git, pkg-config }:
  +{ lib, stdenv, python3, fetchFromGitHub, git, pkg-config, fetchpatch }:
   
   # Note:
   # Conan has specific dependency demands; check
  
positive.code:     description = "Decentralized and portable C/C++ package manager";
      license = licenses.mit;
      maintainers = with maintainers; [ HaoZeke ];
      platforms = platforms.linux;
    };
  }
  
negative.code:     six
      tqdm
      urllib3
    ] ++ lib.optionals stdenv.isDarwin [ idna cryptography pyopenssl ];
  
    checkInputs = [
      pkg-config
  