Redis (Remote Dictionary Server) is an in-memory key–value database that runs as a background service and is widely used as a distributed cache and message broker. It is open-source and provides extremely high-performance data storage and retrieval with optional durability, making it ideal for applications that need to reduce latency and minimize I/O operations. 1. Quick & Basic Installation Before integrating Redis with PostgreSQL (Aurora-compatible), let’s set up everything locally using Docker. This gives you a full development environment that can later be migrated to AWS with minimal changes. 1.1…