On Googlebook, users can't discover or install custom keyboard apps---also
known as input method editors (IMEs)---or custom launchers using Google
Play. To provide users with a stable and reliable desktop experience, Googlebook
supports only native system input methods and launchers.

## What this means for your app or launcher

If you develop or maintain a custom keyboard app or custom launcher, keep the
following details in mind:

- **Visibility on Google Play:** Googlebook users cannot discover or install custom IMEs or custom launchers on Google Play. These apps and launchers remain available on Google Play for other supported Android devices.
- **Action required:** No action is required for developers of these apps.

## Future support

Google's goal is to foster an open and customizable ecosystem. Google continues
to evaluate technical opportunities to safely expand API support to enable
custom IMEs and launchers in future platform updates and will provide an update
when support for custom IMEs using Google Play is available.

## Additional resources

- [Build adaptive apps for Googlebook](https://developer.android.com/develop/adaptive-apps/guides/googlebook/overview)
- [Input compatibility on large screens](https://developer.android.com/develop/ui/compose/touch-input/input-compatibility-on-large-screens)
- [Increase app availability across device types](https://developer.android.com/develop/adaptive-apps/guides/increase-app-availability)
- [Create an input method](https://developer.android.com/develop/ui/views/touch-and-input/creating-input-method)