While developing BuildBudget (a GitHub Actions cost analyzer), I discovered React Native's test workflow costs $20k/month - 80x more than typical workflows. The

While developing BuildBudget (a GitHub Actions cost analyzer), I discovered React Native's test workflow costs $20k/month - 80x more than typical workflows. The analysis reveals interesting patterns about matrix builds, macOS runners, and minute-based billing. Thought you might find the deep dive interesting.