I found MS Mixed Reality and HoloLens build

spent a few hours with google, but it seems that there is an Unreal Engine build that supports HoloLens and other MS MR devices … sharing here since most people have no clue it exists at all, but it get asked quite often.

https://github.com/MICROSOFT-XBOX-ATG/MICROSOFT_UWP_UNREAL/tree/dev_MixedReality

Have you or anyone else confirmed this works on hololens?