We built a dedicated event store – here's why Kafka and Postgres weren't enough

After years of building systems with CQRS and event sourcing, we kept running into the same roadblocks: Missing concurrency control, unreliable ordering, complex snapshotting, no native replays. So we built a database purpose-built for event-sourced systems – and wrote up how it compares to Kafka, Postgres, MongoDB, and others.