MXENV_UV_GLOBAL=false needs python3 preinstalled #66

Job	Run time
lint / lint	13s
variants / build (3.9, ubuntu-latest)	1m 23s
variants / build (3.9, windows-latest)	2m 24s
typecheck / build	15s
variants / build (3.9, macos-latest)	1m 32s
variants / build (3.14, ubuntu-latest)	1m 32s
variants / build (3.14, macos-latest)	1m 23s
variants / build (3.14, windows-latest)	3m 41s
tests / build (3.9, windows-latest)	53s
tests / build (3.10, macos-latest)	22s
tests / build (3.10, ubuntu-latest)	12s
tests / build (3.11, macos-latest)	17s
tests / build (3.9, ubuntu-latest)	17s
tests / build (3.12, macos-latest)	18s
tests / build (3.12, ubuntu-latest)	16s
tests / build (3.10, windows-latest)	57s
tests / build (3.11, ubuntu-latest)	16s
tests / build (3.11, windows-latest)	48s
tests / build (3.13, windows-latest)	55s
tests / build (3.14, ubuntu-latest)	11s
tests / build (3.13, macos-latest)	18s
tests / build (3.14, windows-latest)	1m 18s
tests / build (3.13, ubuntu-latest)	17s
tests / build (3.14, macos-latest)	19s
tests / build (3.12, windows-latest)	55s
Build & verify package	25s
Publish in-dev package to test.pypi.org	17s
Publish released package to pypi.org	0s
docs	0s
	21m 54s

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