anchor.diff:      owner = "Chia-Network";
       repo = "chia-blockchain";
       rev = version;
  -    sha256 = "sha256-yS0/Fy2dj8VIbwv2J9sehP0VN0f/YDxu1k9WkaeEz8M=";
  +    fetchSubmodules = true;
  +    sha256 = "sha256-nK/Zk2zgIdrRtw3+VkUXQWfI9j29XFDOR95Dvbn07eA=";
     };
   
     patches = [
  
positive.code:       --replace "clvm_rs==0.1.8" "clvm_rs>=0.1.8" \
        --replace "clvm==0.9.7" "clvm>=0.9.7" \
        --replace "bitstring==3.1.7" "bitstring>=3.1.9" \
    '';
  
    preCheck = ''
  
negative.code: { lib
  , cacert
  , fetchFromGitHub
  , fetchpatch
  , python3Packages
  