How to organize the broadcast of any content from any platform to the board?

Question

Android

Good afternoon.
The situation is this: there is a screen-board + SMART projector + NUC on WIN10 + WiFi.
Task: to organize an opportunity for any incoming guest, from any device of any platform, without dancing with a tambourine (from the side of the guest) to connect to the NUC (or directly to SMART?) and display any of their data on the screen-board (be it a presentation, a picture or video, etc.).
That is, a person came, decided to show a presentation unexpectedly from the phone, and ... how?
It is permissible, perhaps, to offer him to quickly download and install a client for some thread of the media server. The question then is for what?
Found in the internet Kido (former XBMC), all sorts of ChromeCast and other Dongles.
But something did not enter whether this Kido can implement the necessary output scheme.
If someone came across how this can be solved, unsubscribe =)
Thank you.