Bonus:
The key is, subsistence farming is not small scale. It’s why subsistence farming is often described as extensive farming as opposed to modern intensive farming. Natural yields suck and very very quickly degrade land. About the only real intensive agriculture historically is rice paddies where you’d have large amounts of labor planting and tending individual rice plants for a very large yield by area and to a much lesser extent but still significant terraced potato farms. Everything else used tons of land.
About the only real intensive agriculture historically is rice paddies
Amazonian, Aztec/Maya and some northern American pre colonial people practiced intensive agriculture to support large cities. Crops included corn, beans, squash, cacao, hot peppers, manioc, pineapple, potato, sweet potato, and a lot more.
what the fuck kind of super space efficient micro-farm has dedicated LAWN space‽‽
Right?! In a survival situation you’d be better off using that space for more food or maybe setting up solar panels to power essential equipment - check out gearscouts.com to compare power stations with the best wh/$ value if youre serious about prepping.