SC, I have to admit a lack of imagination on this one. All I can think about when I see this is a pit filled with "night soil".
Hydroponics: Old becomes new!
National Park Service Hydroponics
Picture of raft system of growing from:
I prefer to grow in dirt myself.
"Archaeologists found more Aztec artifacts in the residential area of the excavations. Under the Aztec building's thick adobe floors, the excavation team found a pair of funerary vessels that contain the bone remains of infants, as well as several burials associated with an offering of censers (vessels in which incense is burned), whorls (a spinning machine or spindle) and spinning tools."
Spinning thread and weaving cloth absorbed a large part of a woman's life in pre-industrial times. We live in a time of manufactured textiles, a luxury.
