Aquaponics is a hydroponics system with a fish tank added to it; fish add all essential nutrients for the plants, and the plants clean the water. It greatly reduces the amount of materials (no need to worry about fertile soil or damaging insects), space, and work needed to provide food while increasing yield compared to that of traditional soil farming. It's a sustained ecosystem, and though it requires additional water to be added occasionally, it uses water far more efficiently than any other system of farming. If heated with compost, a greenhouse the size of a basketball court could indefinitely sustain a good 30 people.
Hemp can be grown practically anywhere with at least 2 harvests a year and can be made into almost anything we need with net-zero energy, from building material to fuel to clothing to food, not to mention it's great for the soil it grows in.
I believe sustainability is an inherent characteristic of any free society, and when many do not live in areas suitable for traditional agrarian farming, could this be a solution to feed the revolution? Would it be prudent to begin with such agricultural/horticultural projects? Or am I just way too enthusiastic about all of this?