?? Google leads me to “Architects of the Grand Design” - is this it?
Decide whether you want cables, line-of-sight, or other interconnection method. The current Internet was made possible by the (now deprecated) Long Line system that relied heavily on microwave relay towers. The resources to lay long distance cables are very hard to get before they are already demonstrated to be profitably useful, so personally I’d go with line of sight or ground-following (or ley lines, or river courses, or railroad tracks).
Scrying interfaces are legion; bowls of water, mirrors, thrown objects like sticks, stones or tiles, and of course there’s always haruspicy. “Dammit, George, I told you to get a pack of double-A chickens at the market, I hate using squirrel livers!”
