Show HN: UnisonDB – B+Tree DB with sub-second replication to 100+ nodes

UnisonDB is a log-native database that combines storage and streaming into one system — no CDC, no Kafka, no separate message bus.

It uses WAL-based replication with B+Tree storage to fan out writes to 100+ edge nodes in sub-second latency. Every write is durable, queryable, and instantly available as a replication stream.

Built for Edge AI and distributed systems where data needs to live close to computation. Supports: - Multi-model storage (KV, Wide-Column, LOB) - Atomic multi-key transactions - Real-time change notifications - Namespace isolation for multi-tenancy

We benchmarked it against BadgerDB and BoltDB using redis-benchmark — results in the README show competitive write/read throughput with consistent replication performance even at 100+ concurrent relayers.

Open source (Apache 2.0): https://github.com/ankur-anand/unisondb

Would love feedback on the architecture and use cases!