Production-Grade Presence Tracking: Solving NestJS's Hidden Scalability Challenge

Real-time presence tracking appears simple until developers hit production—ghost users from lost connections, multiple tabs marking users offline, and inconsistent state across distributed pods create a maintenance nightmare. This NestJS package eliminates the gap between prototype code and production-ready solutions, addressing problems that have plagued real-time applications for years. For teams building chat apps, collaborative tools, and support platforms, this represents the long-missing building block between starting development and shipping at scale.