# User Interfaces

By default, `pnpm` is setup to track any subdirectory of the `ui` as a `pnpm` workspace. To help illustrate this, let
us consider the example directory structure below. It illustrates how you may have several, independently managed
user interfaces, including command line interfaces.

```shell
|- ui
   |- mobile
   |  |- ## react native app
   |
   |- storefront
   |  |- ## ...
   |
   |- backstage
   |  |- ## ...
   |
   |- cli
   |  |- # ...
   |
   |- ## ...
```