To me what seems too good to be possible is the triple combo of shade, radiative cooling, and water harvesting Only ambient sunlight needed here, but they'd ha

To me what seems too good to be possible is the triple combo of shade, radiative cooling, and water harvesting Only ambient sunlight needed here, but they'd have to make the panels horizontal (indeed, curtained at night like you say) somehow: https://www.thebrighterside.news/post/mits-high-tech-hydrogel-window-pulls-clean-drinking-water-from-dry-desert-air/ https://www.thebrighterside.news/post/mits-high-tech-hydroge... Edit I guess the low-maintenance option might be some kind of giant variegated Madagascan succulent