Show HN: T4 – a versioned datastore with branching and time-travel (S3-backed)

Category: database

Tags: distributed-database, key-value-store, version-control, s3-backed, go-library

Score: 7.8/10 (Innovation: 7, Technical: 8, Documentation: 9, Utility: 7)

T4 is an embeddable, S3-backed key-value store for Go with etcd v3 compatibility, offering unique branching and time-travel capabilities. It's interesting because it combines distributed systems durability with Git-like versioning features, enabling zero-copy database forks and point-in-time recovery while maintaining high compatibility with existing etcd tooling.

Target audience: backend devs, devops, platform engineers

Repository: https://github.com/t4db/t4 · Go · MIT · 4 stars

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