The macOS Apple Silicon job failed on its first run with
NotImplementedError: Unsloth currently only works on NVIDIA, AMD
and Intel GPUs.
surfaced from `unsloth_zoo.device_type.get_device_type()`. The cause
is the version pin: `pip install 'unsloth_zoo>=2026.5.1'` resolves
to the most recent PyPI wheel, which predates PR #620 and therefore
predates the `_is_mlx_only` gate in `unsloth_zoo/__init__.py` that
short-circuits the GPU device-type probe on Darwin+arm64+mlx.
Switch to `pip install --no-deps "unsloth_zoo @ git+https://github.com/unslothai/unsloth-zoo"`
so the macOS job sees the merged main branch and exercises the
actual MLX dispatch code. Studio's own `install.sh` does this for
exactly the same reason.
This is also the smoking gun the macOS runner exists to catch:
the spoofed Linux job cannot reproduce a stale PyPI/zoo pairing
because it never imports through device_type. The first real Mac
run found the gap on its first try.
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