Question / Help How to connect 2 Macs like 2 pc streaming setup

[BurnerIam]

I have a MacBook Pro 2016 and Mac mini I want to use my Mac mini for my music production and MacBook Pro for streaming how can I have my Mac mini screen on my streaming MacBook Pro through ndi it doesn't show up I don't know why but I have elgato hd60 can anyone tell Me how can I connect please