> ## Documentation Index
> Fetch the complete documentation index at: https://help.experro.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Review environment file

The .env files are typically used to store environment variables, which configure various aspects of your application. These settings may differ between development and production environments. While developing a theme on your local machine, the .env file allows you to point to different Experro environments and fetch data accordingly.

## Experro's provides three `.env` files:

* `.env`
* `.env.development.local`
* `.env.production`

***

### `.env`

Here's how the `.env` file will look after you run [`experro-cli init`](./about-cli/#init) and provide the necessary options:

```js theme={null}
CLI_TOKEN=XXXXXXXX
STORE_URL=XXX-en-us.experro.app
TENANT_ID=02438836-35e0-413b-bb55-0a1a3833b5b1
WORKSPACE_ID=117065b7-b084-421b-a3cb-5c81d76197f2
API_HOST=apis.experro.app
CHANNEL_IDS=XXXX-XXXX-XXXXXX-XXXX
```

> #### How to Obtain Channel IDs?
>
> To get Channel IDs, you can refer to the documentation [Get Channel Information](../other/channel-information#channel-ids).

### `.env.development.local`

The `.env.development.local` file contains environment variables that the Experro base theme uses to determine which modules to load or exclude during local theme development.

Currently, the `.env.development.local` file must include the following predefined variables:

```js theme={null}
REACT_APP_BUILD_TARGET=app
REACT_APP_ECOMMERCE_MODULE_ENABLE=true
REACT_APP_STORE_URL=http://localhost:8080/
REACT_APP_STORE_TOKEN=http://localhost:8080/
```

In addition to these required variables, Experro also allows you to add two optional variables:

> The additional variables below will be supported only when you are using a BigCommerce store with Experro Admin:

```js theme={null}
REACT_APP_MULTI_CURRENCY_ENABLE=false  // Enables or disables multi-currency support.
REACT_APP_EXTERNAL_CHECKOUT=true // Enables or disables the use of an external checkout versus an embedded one.
```

> ##### REACT\_APP\_BUILD\_TARGET
>
> The `REACT_APP_BUILD_TARGET` variable accepts two values: the default value `app`, and `app-ui-builder`. Setting it to `app-ui-builder` will launch the **Visual Builder** locally, allowing theme developers to customize component widgets accordingly.

### `.env.production`

The `.env.production` file functions similarly to the `.env.development.local` file. While `.env.development.local` is used during local development, the `.env.production` file is utilized when creating or uploading a build using [experro-cli](Theme-Deployment.md). During local development, variables from `.env.development.local` are applied, but when you create a build or upload it, `.env.production` is used to determine the build configuration.