Mira expected games or illicit tools. Instead she found small, exquisitely made programs—apps that did one thing and did it perfectly. There was an app that let you record the scent of rain, packaging memory into a file you could replay on a friend’s wrist. Another app distilled a sunrise into color gradients that could be painted into a drone’s flight path so it traced dawn across a city. One app let you send a single anonymous compliment that found its way to the person who needed it most, like paper boats in an urban river.