Not much of a project description, just a few pictures and designs available in GitHub.
I've built my PS4 into this briefcase and added a screen to it and tucked everything away behind some laser cut acrylic.
You can still attach an external screen (TV) when you're not on the road and find that the 13" display is a bit too small ;-)
There is a connector for ethernet and USB as well.
The whole thing weighs about 9 KG, so it's portable (although you need a power outlet) but not for a long time (unless you work out a lot).