The original title is quite long: "Implementing ephemeral staging environments per PR: How we caught 12 breaking API changes pre-merge"

Short summary

A team replaced their shared staging environment with ephemeral per-PR environments using GitHub Actions, isolated RDS instances, and Pact contract testing. They caught 12 breaking API changes in three months, cut staging costs from $500 to ~$300/month, and boosted developer productivity by ~30%. The article includes a practical 9-week implementation roadmap and cost-benefit analysis.

• •Replaced shared staging with ephemeral per-PR environments using GitHub Actions, RDS, and Pact
• •Caught 12 breaking API changes pre-merge; cut costs from $500 to ~$300/month and improved productivity 30%
• •Includes a 9-week implementation roadmap covering IaC, contract testing, and scaling

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