Ronnie Brust’s vision for a self-sufficient desert camp includes a kitchen, a living room and a giant projector screen hanging between scaffolding towers. At the center of the camp will be a 32-foot geodesic dome, the frame of which Brust spent Wednesday building in his mother’s yard at Sixth and Miller streets. He will transport the structure to Burning Man, the annual arts festival in Nevada’s Black Rock Desert, later this summer.