anchor.diff:  
   buildPythonPackage rec {
     pname = "glyphslib";
  -  version = "6.0.6";
  +  version = "6.0.7";
   
     format = "pyproject";
   
  -  src = fetchPypi {
  -    pname = "glyphsLib";
  -    inherit version;
  -    sha256 = "sha256-F4ev+o6vwDjV2H3z+DrwQZ7VLc1cSIjCWhgY7pcse1M=";
  +  src = fetchFromGitHub {
  +    owner = "googlefonts";
  +    repo = "glyphsLib";
  +    rev = "v${version}";
  +    sha256 = "sha256-PrHK9uEgs0DcNYW6EQ5Qw29CN4R2OcxOHrMeIswsxdA=";
     };
   
  +  SETUPTOOLS_SCM_PRETEND_VERSION = version;
  +
     nativeBuildInputs = [ setuptools-scm ];
  -
  -  checkInputs = [ pytestCheckHook ];
  -
  -  pythonImportsCheck = [ "glyphsLib" ];
   
     propagatedBuildInputs = [
       fonttools
  
positive.code:     ufo2ft
      skia-pathops
    ];
  
    disabledTestPaths = [
      "tests/builder/designspace_gen_test.py" # this test tries to use non-existent font "CoolFoundry Examplary Serif"
  
negative.code: { lib
  , buildPythonPackage
  , fetchFromGitHub
  , fonttools
  , openstep-plist
  , ufoLib2
  