Mobile citra?!?

I watch a video about mobile citra. (

But he say this emulator unoffical. this emulator working?
it impair my phone?
if this is unoffical, when we get offical emulator for mobile?

Citra for Android is an unofficial port which was based on months old Citra core code. As we didn’t make it, we cannot provide support for it. However, we are working along with the dev behind the port to bring out an official app sometime in the future.