# Configuration

ELS Compass is configured through environment variables. They cover OpenSearch
connectivity, the embedding and reranking models, Docling parsing, storage
roots, the catalog and retrieval-pyramid indexes, LLM wiring, and the shared
coordination plane.

| Page | What it covers |
| --- | --- |
| [Environment settings](environment-settings.md) | Every supported variable, with defaults and effects. |

```{toctree}
:maxdepth: 2
:hidden:

environment-settings
```