Checkpoints is a Core-only plugin. It is not part of @norbital-ai/pod. On Core it turns workspace source into immutable, versioned
releases with separate preview and production environments.
Core manages norbital build inside sandboxed microVMs, versioned DDL, and Neon branch provisioning.
Every commit to main triggers the unified deploy pipeline — merge-base PITR, COW DDL validation,
and live promotion. Preview branches get isolated databases forks for review before merge.