JeroMQ is a pure Java implementation of the ZeroMQ messaging library, offering high-performance asynchronous messaging for distributed or concurrent applications.

Kafka-on-Pulsar - A protocol handler that brings native Kafka protocol to Apache Pulsar

Pulsar consumer clients offering priority consumption

An extensible distributed system for reliable nearline data streaming at scale

KAAP, Kubernetes Autoscaling for Apache Pulsar

Kafka Consumer Lag Checking