A Psalm for the Wild-Built (Monk and Robot #1) is a novella by Becky Chambers about the collaborative society that grew out of the chaos when, centuries ago, all the factory robots simultaneously became self-aware and vanished into the wilderness, never to be seen again—seen through the eyes of an itinerant tea monk.
A warm, comforting read and a delightful answer to the question of how do you write a story set in a utopia.