Neon read-only replicas provide a scalable solution for Prisma applications by allowing read traffic to be offloaded from the primary database, enhancing performance and scalability without additional storage costs. Unlike traditional Postgres, Neon utilizes an architecture that separates storage and compute, with read-only replicas functioning as independent compute instances that access a single data source, ensuring data consistency and instant availability. Neon’s read-only replicas leverage features like Autoscaling and Auto-suspend for cost-effective resource management. To implement this in Prisma, developers can use the newly released @prisma/extension-read-replicas, which allows read operations to be directed to read-only replicas while write operations remain with the primary database. This setup is achieved by extending the existing Prisma Client with the extension and configuring it to connect to Neon read-only replicas, offering an efficient method to scale applications.