mochi mqtt

Implements the complete MQTT v5.0.0 specification including user properties, topic aliases, and shared subscriptions, with hybrid support for v3.1.1 and v3.0.0, as confirmed by passing Paho interoperability tests.

Exports core broker code and provides a flexible hook-based system for plugins, allowing total customization of authentication, persistence, and packet handling through events like OnPacketRead and OnACLCheck.

Uses a trie-based topic model and client-specific write buffers to handle irregular client behavior, with over a thousand unit tests and benchmarks showing competitive performance against brokers like Mosquitto.

Can be run as a standalone binary or embedded as a library in Go projects, offering a lightweight solution with an inline client for direct publishing and subscribing from embedding code.