> For the complete documentation index, see [llms.txt](https://mandarineframework.gitbook.io/mandarine-ts/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mandarineframework.gitbook.io/mandarine-ts/mandarine-core/dot-env-file.md).

# Dot env file

Mandarine supports the environmental file `.env`.  When `.env` file is existent in your current working directory, Mandarine will add its content to Deno's environmental variables (`Deno.env`).

### Structure

`.env` file has the following structure 

```
MY_KEY=My value
MY_KEY_NUMBER_2=My value number #2
ANOTHER_KEY="My value 3"
.....
```