JFrog has developed an internal tool called the near Zero Downtime Migration (nZDM) to address the challenges associated with database migrations, which often result in significant downtime and data loss. This tool, designed exclusively for JFrog's internal use, leverages the PostgreSQL extension pglogical for logical data replication, automating key migration tasks to minimize human error and ensure seamless service continuity. nZDM's architecture, which includes an event-driven approach and microservices, allows for efficient pre-migration checks and monitoring through tools like Grafana and Coralogix. Since its implementation, nZDM has improved JFrog's internal migration processes by reducing downtime, enhancing efficiency, and enabling simultaneous migrations, ultimately leading to a better user experience for their customers. JFrog continues to innovate with plans to expand nZDM's capabilities to support cross-cloud migrations and integrate additional technologies like Kafka for message streaming.