With its current and historical status as a city for shipping and cargo, Louisville, Kentucky, sometimes suffers from an unfortunate degree of smog and poor air quality; 'Smart Louisville' is a new, technological government program designed to help residents tackle that issue in their homes. The free municipal service allows citizens to get notifications about the air quality through some of their smart home devices thanks to an IFTTT channel.
IFTTT is a smart home protocol that allows users to program their devices with causal statements (it stands for, "If this, then that.") For instance, an IFTTT channel might involve starting a pot of coffee if it's 8 AM.
The Smart Louisville channel controls several different smart home devices, such as Philips Hue light bulbs. Tuned in to the official information from Louisville's government website, it will change the colors of those light bulbs depending on the severity of the air quality.