On 9 August 2019, Huawei officially unveiled Harmony OS at its inaugural developers' conference in Dongguan. Huawei described Harmony as a free, microkernel-based distributed operating system for various types of hardware, with faster inter-process communication than QNX or Google's "Fuchsia" microkernel, and real-time resource allocation. The ARK compiler can be used to port Android APK packages to the OS. Huawei stated that developers would be able to "flexibly" deploy Harmony OS software across various device categories; the company focused primarily on IoT devices, including "smart displays", wearable devices, and in-car entertainment systems, and did not explicitly position Harmony OS as a mobile OS.