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docs/NATS.md

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 # NATS
+
+NATS is a lightweight, high-performance messaging system designed for cloud native applications, IoT messaging, and microservices
+architectures.
+
+## Key Features
+
+- Simple: Text-based protocol with straightforward publish-subscribe semantics
+- Fast: Written in Go, capable of millions of messages per second
+- Lightweight: Small footprint, minimal dependencies
+- Cloud Native: Built for modern distributed systems
+
+## Core Concepts
+
+- Publishers: Send messages to subjects
+- Subscribers: Receive messages from subjects
+- Subjects: Named channels for message routing
+- Queue Groups: Load balance messages across subscribers
+
+## Message Patterns
+
+- Publish/Subscribe: One-to-many message distribution
+- Request/Reply: Synchronous communication
+- Queue Groups: Load balanced message processing
+- Stream Processing: Persistent message streams (via NATS Streaming/JetStream)