We did something similar to this in the middle of the Mojave with carbonate rock, charcoal, and a big corrugated metal tube.
It produces about 3 gallons of water a night.
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See the big tube sticking up? There's a miner's hotel built there.
Got a link to how this was made?
I do not, I'm sorry. Basically the bottom is charcoal for a filter, the top is porous carbonate rock to catch moisture from the air, and the large metal tube serves as a way to heat things up and then at night chill down below ambient a bit faster so that water condenses out of the rock and drips through the charcoal and through piping to a water collection system.