What are some alternatives?
When comparing Mokee and MIUI, you can also consider the following products
AOKP - AOKP stands for Android Open Kang Project. It is a custom ROM distribution for many Android devices.
LineageOS - Operating system for smartphones and tablet computers, based on the Android
Resurrection Remix OS - Resurrection Remix ROM is ultimately full featured, stable and combined with the best features of...
Android - Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.
Paranoid Android - Paranoid Android provides a unique experience and ultimate customization for your Android device.
Replicant - Replicant is a distribution of Android that is 100% Free Software.