Hi there, Nuitrack SDK finally reached Persee+ and Femto (W) ! 
And it’s readily available at our Github repo.
As always you’ll get a fast tracking engine proven by 10 years of development and production projects.
We’ll update this post by a number of tech.demos during next few weeks.
Feel free to share any feedback.
P.S. We’d like to thank Orbbec team for invaluable help with overcoming technical issues/limitations 