Lighthouse: A Map To Check Friends Proximity To Disasters

A few summers ago, I watched news coverage of a wildfire tearing through a part of California and had a nagging thought: I wonder how close any of my friends are to these fires. That gap between “disaster happening somewhere” and “disaster happening to someone I care about” is the reason I built Lighthouse. It’s a single-page map that plants a small flag at the home of every person in my contacts…