Shortly after emerging on GitHub, Google's upcoming Fuchsia OS was compiled into an APK file that can be downloaded and installed on most Android devices. The app itself isn't meant to reflect the true user experience of the upcoming operating system and is only intended to serve as a preview of things to come. Following the installation of Fuchsia OS 1.0 "Armadillo," users will be presented with a launcher that looks unlike any other user interface Google introduced with Android so far. While the vanilla version of Fuchsia features some rather noticeable elements of Material Design, the platform itself seems much more streamlined that Google's ubiquitous operating system that's been dominating the smartphone market for years.
The Fuchsia launcher revolves around a central card that contains basic information including time, date, and battery level, and also features what seems to be the profile picture of the device owner. Tapping the profile picture expands the card and shows a number of commands that Android would usually situate in its (expanded) notification panel. From here, users are able to change the volume and brightness level of their device, control its orientation lock, turn Airplane mode on or off, or quickly connect to a Wi-Fi network. The card also features the option for logging out of one's account that's located immediately above a "More" button, but neither element is functional in the current Fuchsia OS build. Regardless, the button on the bottom of the launcher's central panel will likely be used to further expand the list of quick settings.
The remainder of the user interface is dedicated to email and stories apps, in addition to featuring an "Ask for anything" card that's labeled with a Google logo and will presumably serve as a shortcut to the Fuchsia version of the Google app. While this hasn't been explicitly stated, Fuchsia OS will likely follow the same naming conventions that Android already does, i.e. the next major build of the operating system will likely be named after an animal that starts with the letter "B." You can download the Armadillo build of Fuchsia OS by following the link below, though note that the app was compiled from Google's GitHub code by a third-party developer, so you're installing and running it at your own risk. More details on the upcoming operating system developed by the Mountain View-based tech giant are expected to follow shortly.