Checkout out https://hivemindai.dev, which is a shared coordination layer for ai agents but can be shared across different users/teams and just captures the main decisions/actions instead of all the junk in between
For systems that can tolerate slightly higher latency, and prefer operational simplicity.
A good example would be a ecommerce platform that is streaming order history into a data warehouse. They likely don’t need sub-millisecond latency that Kafka provides, and can use a simpler, significantly cheaper option to achieve the same result