That’s actually not too hard. I only have to wet down the litter in my coop once every couple of weeks. A spray nozzle on fine mist works pretty good.I don't live in the desert, but I imagine your challenge will be to keep the compost moist - like a wrung-out sponge. If the compost pile gets bone dry, it stops composting. Well, we all have advantages and disadvantages wherever we live. Good luck on your composting!