Show HN: SNKV and LiteFS – Distributed KV store with automatic replication

3 points

4 months ago

SNKV is a simple key-value store built on SQLite's B-Tree API. I've just integrated it with LiteFS to get distributed replication with zero application changes.

The interesting part is how LiteFS works - it sits between your application and SNKV using FUSE, intercepts WAL writes, and streams them to replica nodes. The application just sees a regular filesystem. I'm using Consul for leader election, but LiteFS also supports static configuration.

Setup guide with working code: https://github.com/hash-anu/snkv/blob/master/litefs_setup_gu...

Verified with 10MB of data replicating correctly across nodes. The guide includes architecture diagrams and both writer/reader programs with full byte-by-byte verification.

Would appreciate your feedback.