Use Alta without internet

Routers
1

I need to use alta network without internet. Is it as simple as getting a route 10 and a controller and setting it up normally?

2

There is a knowledge base article on this: https://help.alta.inc/hc/en-us/articles/47983555191067-Using-Alta-Control-in-an-Isolated-Offline-Environment

3

And if you don’t utilize a Route10..