MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.
Silverback is a message bus and broker integration library for .NET. It is designed to simplify event-driven architectures and asynchronous messaging, with first-class support for Apache Kafka and MQTT.
ZoneTree.FullTextSearch is an open-source library that extends ZoneTree to provide efficient full-text search capabilities. It offers a fast, embedded search engine suitable for applications that require high performance and do not rely on external databases.