Terrible design. Modular hydroponic pods have always been a better idea and if someone handed me 100 million I'd use it to develop standardised farming skyscrapers/towers to hydroponically grow food in towns/local communities with minimal water, electricity usage and human intervention. It's so crazy that we have the tech to do this sort of thing now, but don't. We could do so much if things weren't so profit focusse…
Land use for vegetable farming is really not an issue. Just build your hydroponics setup on the ground, you'll cut costs by an order of magnitude.
If you actually want to reduce land use, get people to eat less meat. The crops that use the most land by far are corn and soy, and most of those ends up just being fed to livestock.