# config/initializers/avo.rb
if defined?(Avo::MediaLibrary)
  Avo::MediaLibrary.configure do |config|
    config.visible = false
  end
end
```

You may also use a block to conditionally show the menu item. You'll have access to the `Avo::Current` object and you can use it to show the menu item based on the current user.

```ruby