Xatlas install fails at the final step

[ewebgh33]

Everything seemd OK up to the point where I have edited to cpp file and saved.
Then on the final step
.\python_embeded\python.exe -m pip install .\xatlas-python\
I get

C:\AI\Image\ComfyUI_windows_portable>.\python_embeded\python.exe -m pip install .\xatlas-python\
Processing c:\ai\image\comfyui_windows_portable\xatlas-python
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
ERROR: Exception:
Traceback (most recent call last):
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\cli\base_command.py", line 107, in _run_wrapper
    status = _inner_run()
             ^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\cli\base_command.py", line 98, in _inner_run
    return self.run(options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\cli\req_command.py", line 71, in wrapper
    return func(self, options, args)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\commands\install.py", line 393, in run
    requirement_set = resolver.resolve(
                      ^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\resolver.py", line 79, in resolve
    collected = self.factory.collect_root_requirements(root_reqs)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 538, in collect_root_requirements
    reqs = list(
           ^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 494, in _make_requirements_from_install_req
    cand = self._make_base_candidate_from_link(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\factory.py", line 226, in _make_base_candidate_from_link
    self._link_candidate_cache[link] = LinkCandidate(
                                       ^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 309, in __init__
    super().__init__(
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 162, in __init__
    self.dist = self._prepare()
                ^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 239, in _prepare
    dist = self._prepare_distribution()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\resolution\resolvelib\candidates.py", line 320, in _prepare_distribution
    return preparer.prepare_linked_requirement(self._ireq, parallel_builds=True)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\operations\prepare.py", line 537, in prepare_linked_requirement
    return self._prepare_linked_requirement(req, parallel_builds)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\operations\prepare.py", line 652, in _prepare_linked_requirement
    dist = _get_prepared_distribution(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\operations\prepare.py", line 77, in _get_prepared_distribution
    abstract_dist.prepare_distribution_metadata(
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\distributions\sdist.py", line 59, in prepare_distribution_metadata
    self._install_build_reqs(build_env_installer)
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\distributions\sdist.py", line 133, in _install_build_reqs
    build_reqs = self._get_build_requires_wheel()
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\distributions\sdist.py", line 108, in _get_build_requires_wheel
    return backend.get_requires_for_build_wheel()
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_internal\utils\misc.py", line 694, in get_requires_for_build_wheel
    return super().get_requires_for_build_wheel(config_settings=cs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_vendor\pyproject_hooks\_impl.py", line 196, in get_requires_for_build_wheel
    return self._call_hook(
           ^^^^^^^^^^^^^^^^
  File "C:\AI\Image\ComfyUI_windows_portable\python_embeded\Lib\site-packages\pip\_vendor\pyproject_hooks\_impl.py", line 402, in _call_hook
    raise BackendUnavailable(
pip._vendor.pyproject_hooks._impl.BackendUnavailable: Cannot import 'scikit_build_core.build'

And it feels like I am the only one who has seen this because google shows no results for similar errors.

But because this step won't complete, I can't load the nodes. Booting ComfyUI says import error:
ModuleNotFoundError: No module named 'xatlas'
Then red/missing nodes once the UI is loaded.

[Sucotasch]

\python_embeded\python.exe -m pip install scikit-build-core