Xibo, CMS, NAS, multi display

I am new in this world so bear with me.
I am trying to figure out how to make a digital signage system running on a my own cloud server network ( maybe nas server or any other that is compatible with xibo), sending information to 4 different contents to 4 tv monitors?
can it be de done? what hardware do i need? please make it easy to understand…
best regdards