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

# Overview

> What Solya POS is, who it is for, and how this documentation is organized.

Solya POS is a retail point-of-sale and back-office platform. This section is the
starting point: it explains the product at a glance and points you to the right
guide for what you need to do.

## The two apps

| App          | Runs where               | Who uses it                   | What it does                                                                                                       |
| ------------ | ------------------------ | ----------------------------- | ------------------------------------------------------------------------------------------------------------------ |
| **Centrale** | Head office / browser    | Managers, buyers, back-office | Manages the catalogue, stock, pricing, promotions, orders, transfers and reporting across the whole store network. |
| **Caisse**   | In-store, on the counter | Sales associates, cashiers    | Rings up sales, takes payment, handles returns, gift cards, rentals, repairs and the daily cash session.           |

Both apps are backed by the same API, so data flows between them without
re-keying: a product created in the Centrale is sellable at the Caisse, and a
Caisse sale is visible to the Centrale.

## How this documentation is organized

<CardGroup cols={2}>
  <Card title="Get started" icon="rocket" href="/en/getting-started/concepts">
    Core concepts, roles and permissions, navigation, glossary and FAQ.
  </Card>

  <Card title="Centrale" icon="building" href="/en/centrale/overview">
    Back-office guides, one per capability.
  </Card>

  <Card title="Caisse" icon="cash-register" href="/en/caisse/overview">
    Point-of-sale guides, one per screen.
  </Card>

  <Card title="Developers" icon="code" href="/en/developers/overview">
    API authentication, request patterns, error codes, and the MCP agent surface.
  </Card>
</CardGroup>

## Next steps

Read the [core concepts](/en/getting-started/concepts) to learn the vocabulary
used throughout these guides, then jump into the [Centrale](/en/centrale/overview)
or [Caisse](/en/caisse/overview) section for your role.