PlanetScale is a highly available and scalable database solution that helps mitigate downtime caused by human error, system immaturity, and application issues. The platform uses Vitess, a mature database clustering system for horizontal scaling of MySQL, to ensure approachability while maintaining reliability and scalability. PlanetScale Insights provides real-time monitoring and analysis of queries to help identify performance issues and prevent outages. By building on a proven solution and continuously adding new tools and alerts, PlanetScale aims to deliver a high-performance scalable database that doesn't compromise developer experience.