anchor.diff:      owner = "hydrusnetwork";
       repo = "hydrus";
       rev = "refs/tags/v${version}";
  -    sha256 = "sha256-GmYjf2r5dyxkPWTmypChKbkeifCMFKi1lzRhPNe7Ckw=";
  +    hash = "sha256-GmYjf2r5dyxkPWTmypChKbkeifCMFKi1lzRhPNe7Ckw=";
     };
   
     nativeBuildInputs = [
  
positive.code:     cbor2
      chardet
      cloudscraper
      dateutil
      html5lib
      lxml
      lz4
  
negative.code:     twisted
    ];
  
    checkInputs = with python3Packages; [
      nose
      mock
      httmock
    ];
  
    # most tests are failing, presumably because we are not using test.py
    checkPhase = ''
  