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MacRun vs GitHub-hosted macOS
GitHub's hosted macOS runners are metered per minute. Convenient for light or bursty CI; expensive once builds are steady.
Billing$0.08–0.16 / minute vs $79 / mo flat
MachineShared, spun per job vs one M4 that's always yours
CachesCold each run vs warm on your own SSD
When not to pick us
Stay on GitHub-hosted if you run only a few hundred macOS minutes a month — metered is cheaper than any flat plan down there.