More dregs, more dreams.
The walls of this structure are slowly returning to the hard earth from which they came. Literally: the walls are made from adobe, an ancient building method that’s still in use. It’s sustainable – the ingredients are clay, sand, dirt, water, and some sort of organic material (straw, usually.) It doesn’t require any specialized tools. Adobe walls are load-bearing a,nd have good thermal properties. With the proper covering (plaster, or whitewash) adobe walls can last a long time.
Adobe won’t last once that outer covering is gone, and melts away.
In a desert that takes a while, but it still happens.