Liftbridge provides lightweight, fault-tolerant message streams by implementing a durable stream augmentation for the NATS messaging system. It extends NATS with a Kafka-like publish-subscribe log API that is highly available and horizontally scalable. The goal of Liftbridge is to provide a message-streaming solution with a focus on simplicity and usability. Use it as a simpler and lighter alternative to systems like Kafka and Pulsar or to add streaming semantics to an existing NATS deployment.
See the introduction post on Liftbridge and this post for more context and some of the inspiration behind it.