The problem: testing against production data shouldn't take over 30 minutesSnorkel AI builds data development tools for AI teams, used by expert data annotators and frontier model providers. In this specific use case, Snorkel ships code through a CI pipeline built on Kubernetes. Every open pull request, plus ad-hoc commits, gets its own ephemeral Kubernetes namespace (a "PR namespace"). Developers deploy their branch there and run the full test suite before merging.