A facility to incubate nerds and equip them with tools. Currently found in all major cities, hackerspaces exist to pool nerds' resources together and enable them to build and invent ever newer and better things. Most hackerspaces are equipped with rapid prototyping machines (3D printers, laser cutters, CNCs), metal milling tools, welding, electronics, and millinery.
Edgar: "Hey, I want to build a door bell that will tell me who is at the door!"
Zeke: "I think the local hackerspace has the tools you'll need, but you'll have to buy your own parts."