I don’t really see the point. This country has a LOT of farmland and in many cases its reverting to forest due to disuse.
Groups keep pimping the Farm Detroit BS but when you look closely its really about farming grants and subsidies while letting existing farmland go fallow.
They are not going to grow wheat, corn or other grain type crops this way. However, they have been growing mushrooms, and other vegetables like this for some time. By controlling the growing environment you can grow faster than outdoors. Plus you grow year round 24/7. Also, there is less freight to get the product to market. In this case there are 20 million people within 50 miles of this “farm”.
Many produce items like tomatoes are grown in green houses in Canada. Growing outdoors wastes a lot of water. You can also control insect problems better indoors.
I live in NH where much of the state was once farmland (805 in 1865) now it is 80% forested. However, the only thing that grows well here are White Pine trees and rocks.