The smart home has an interface problem, and six undergrads from Duke think they’ve solved it with a Raspberry Pi and Apple’s U1 chip. They believe most of today’s methods for controlling smart devices — voice control, fiddly apps with multiple menus, motion sensors — are cumbersome and sometimes frustrating. What the smart home needs, they say, is an intuitive control interface and automations that fire off based on where you are in your home. Basically, one app to rule it all. And they’re not wrong. Fluid One is their solution. A smart home app that leverages ultra-wideband technology in Apple’s iPhones, Fluid can control connected lighting, locks, cameras, thermostats, and more in two ways: a point-and-click control interface and location-based automations. Just point your iPhone at a smart light bulb, and the correct controls automatically appear to brighten, dim, change color or turn the light on or off. Or, flick your phone up or down to control a device, no touch required. “It’s like the HomePod Mini / iPhone handoff but for any compatible device,” Tim Ho, one of the six co-founders of Fluid, tells The Verge.