[2stop]

... So there is just a never ending supply of raw material also sitting in this high street shop?

[moocowduckquack]

You keep a stock of base materials and things like chips that you can't fabricate onsite.

Is the same as keeping stock for a normal shop, you keep track of what is being used and order more when it gets low.

[mikeash]

They just get a hookup to the Feed, of course.