What's the package on the Photon P0 and what's required to get it running?

I can’t find much on this but I’m curious. If I want to buy 10 of the P0 modules what’s the bare minimum to get them on a circuit?

The official type of this modul is USI WN-N-BM-09


And in the Open Source you can find some more info (e.g. eagle files)