anchor.diff:      homepage = https://octoprint.org/;
       description = "The snappy web interface for your 3D printer";
       license = licenses.agpl3;
  -    maintainers = with maintainers; [ abbradar ];
  +    maintainers = with maintainers; [ abbradar gebner ];
     };
   }
  
positive.code:     psutil pyserial flask_login netaddr markdown sockjs-tornado
      pylru pyyaml sarge feedparser netifaces click websocket_client
      scandir chainmap future futures wrapt monotonic emoji
      frozendict cachelib sentry-sdk typing
    ] ++ lib.optionals stdenv.isDarwin [ py.pkgs.appdirs ];
  
    checkInputs = with py.pkgs; [ nose mock ddt ];
  
negative.code:     "websocket-client"
      "wrapt"
      "sentry-sdk"
      "werkzeug" # 0.16 just deprecates some stuff
    ];
  
  in py.pkgs.buildPythonApplication rec {
    pname = "OctoPrint";
    version = "1.3.12";
  
    src = fetchFromGitHub {
      owner  = "foosel";
      repo   = "OctoPrint";
      rev    = version;
      sha256 = "1lmqssgwjyhknjf3x58g7cr0fqz7fs5a3rl07r69wfpch63ranyd";
    };
  
    propagatedBuildInputs = with py.pkgs; [
  