Christian found these articles that might come in useful for food production if we have living people in our city. The design for the city would have to take either synthetic meat production or sunlight into account.
Cadwallader C. (2014) Laboratory-grown beef: meat without the murder but would you eat it?http://www.theguardian.com/science/2014/jul/13/laboratory-grown-beef-meat-without-murder-hunger-climate-change
Stone M. (2015) Eating the Sun: Can Humans be Hacked to Do Photosynthesis:
This is an awesome pirate slug that steals photosynthesis genes from algae that it consumes.
I wonder if people would be miserable if they only had photosynthetic skin patches to sustain them.
This graft tower has an interesting Matrix-esque design. Looks kind of disgusting also. Gonzalez R. (2011) Puerto Rico’s Living Graft Tower: