The "Certainty Tax": Why Big Tech Will Never Use Wine or Darling for CI

In the world of DevOps, there is an obvious, glaring financial inefficiency: macOS and Windows VMs are a rip-off. If you’re running GitHub Actions or CircleCI, a macOS runner can cost you 10x more per minute than a standard Linux runner. For a Fortune 500 company running thousands of builds a day, that bill is staggering. Theoretically, tools like Wine (for Windows apps) and Darling (for macOS…