Both, I can airplay it, but there is a tiny bit of lag. I would say Airplay is the Primary, and HDMI is the auxiliary.
Updated.
Added a mention of the NUC being in the case since some people may not understand (or notice) the term "Barstick".
Maybe for Flynn's you can use as much info and images from the top half of the first post of the build thread. But just the top half: thanking everyone, showing the cabs that inspired it, the link to the flickr gallery, the link to the side panel CAD, and the other 5 images that follow? Or is that too much?
That might be a bit much, especially considering that you did such a great job of organizing that info in your build thread OP.

Like the Completed Project thread, the idea is a short overview, a picture, and a link to the build thread with all the gory details.
People browsing these pages, are often looking for CP layouts, controls, encoders, monitors, and other technical details or special features to help them refine their build ideas.
You may want to just list technical details/parts/features like:
* RGB LED buttons
* Standardized Molex wiring for easy LED maintenance
* 2 x PacLED64 Advanced LED Controller
* UltraStik 360
* Joystick lighting tubes, etc.
(BTW, I'm
not going through all 15 pages to find all the details for you

)
Just post the exact details/text here that you want to include and I'll copy/paste it to the wiki with the proper formatting.

Scott