# ENVIRONMENT_KEYS

```ts
const ENVIRONMENT_KEYS: readonly ["ENVIRONMENT", "ENV", "NODE_ENV", "MODE"];
```

The variables envapt reads to detect the [Environment](./Environment.mdx), highest precedence first. The first one
with a value sets it.

## See

[https://envapt.materwelon.dev/docs/environment#detecting-the-environment](https://envapt.materwelon.dev/docs/environment#detecting-the-environment)