> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pg-sharding.tech/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

> Understanding SPQR deployment modes and choosing the right one for your use case

SPQR can be deployed in several different configurations depending on your requirements, infrastructure constraints, and operational needs.

<CardGroup cols={3}>
  <Card title="Bare Router with Init SQL" icon="file-code" href="/deployment/bare_router">
    Simple deployment for testing and static configurations
  </Card>

  <Card title="Router + Coordinator" icon="network-wired" href="/deployment/router_coordinator">
    Production-ready setup with dynamic configuration
  </Card>

  <Card title="SPQR Infra Mode" icon="layer-group" href="/deployment/spqrinfra">
    Combined router + coordinator for resource efficiency
  </Card>
</CardGroup>