> ## Documentation Index
> Fetch the complete documentation index at: https://knowledge-base-starter-mintlify-85d166f9.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Architecture

> Overview of our services and how they fit together.

This section documents the high-level architecture of our systems. For detailed runbooks on specific services, check the service's own README or ask in `#eng`.

<CardGroup cols={2}>
  <Card title="Services overview" icon="network" href="/engineering/architecture/services-overview">
    The main services, what they do, and how they communicate.
  </Card>

  <Card title="Data models" icon="database" href="/engineering/architecture/data-models">
    Core entities, their relationships, and where they live.
  </Card>
</CardGroup>