PGCacheWatch, a Python library designed to leverage PostgreSQL's NOTIFY/LISTEN features for real-time cache invalidation. Aimed at developers and database administrators seeking to enhance their applications' responsiveness and data consistency without the overhead of external caching systems, PGCacheWatch integrates seamlessly with existing PostgreSQL setups, offering an intuitive approach to managing cache states based on database events. Perfect for those looking to optimize performance while simplifying cache management in PostgreSQL-driven projects.