Pixel Streaming Helping

I have some questions about pixel streaming
Should I use AWS or use IDC local in my country.
I can’t find much documentation on how to set up Pixel Streaming can anyone help me with how to set it up to run a simple interactive game for my clients to imagine what they are going to do. I want to simulate a game. small music event for my guests I understand how I will do it use unreal Github, not unreal available on EPIC LUNCHER. or is that the old way and I don’t need to use Github or I have to use that way please help me.
I use Unreal Engine 4.27 And 4.26
Thank you so much everyone for helping me

Sorry no who can be helping me