Explore DART, a scalable and adaptive edge stream processing engine, in this conference talk from USENIX ATC '21. Learn about the challenges faced by traditional data processing systems in handling time-critical and dynamically changing IoT applications. Discover how DART introduces a dynamic dataflow abstraction using distributed hash table (DHT) based peer-to-peer (P2P) overlay networks to automatically place, chain, and scale stream operators. Understand the engine's ability to reduce query latency, adapt to edge dynamics, and recover from failures. Examine DART's performance compared to Storm and EdgeWise, and its significant improvements in scalability, adaptability, and application deployment setup times for IoT applications on edge platforms.