[LibreRouter] xbee socket

Hi, I am interested in using this XBee expansion socket (for GPS module or 4G module) but for a LORAWAN node/gateway IoT, at this moment I don't know if it is possible. They are more info about it, the XBee socket? The idea is to deploy TheThings Network (optionally) at the same time than guifinet (or other free networks) https://www.thethingsnetwork.org I was at the presentation in Barcelona, thanks Pau/Gui. Are the slides downloadable somewhere? Many thanks! SAX! Josep Jordana