maestroOne soloist writes the score. Every player turns the page together.

Atomic in-memory state replication for Go, from one writer to every replica. Every reader flips to the new version together, or keeps the old one — no reader ever serves a half-applied update.

Introduction

Getting Started

GitHub

Three-phase commit

CanCommit / PreCommit / DoCommit over NATS. A player that votes no, or fails to stage, aborts the round for everyone — no reader is left half-updated.

Pluggable BlobStore

Control-plane traffic (rounds, votes, heartbeats) stays on NATS. File bytes move through a separate BlobStore — localfs ships in-box, swap in S3 or your own.

No leader election

Soloist is a replicas=1 deployment with stable DNS. Restart is a brief disconnect; players reconnect and resync if they drifted.