But one thing I keep wondering is: where is all the hardware?
Think of the way it used to be aboard older naval vessels, especially submarines, the crew would work, eat and sleep with the machinery completely surrounding them. If you were the radio operator, you slept in the radio room, the guys who handled the torpedoes slept on bunks immediately above the torpedoes.
So the crew of a Archer Class might not have discrete separate areas for working and living and equipment. The areas marked "crew quarters" is also the area with the deuterium tanks, and the crews beds are on top/below the tanks (it's just a type of water). The room that holds the food fabricators is where you go to eat.