Miami lives with four forces - water, air, land and fire - and each one lands hardest on the neighbors with the fewest options. Pick one force, or combine them, and build for the people living with it.

Start from a person, not a technology: “construction crews in Brickell on a heat-advisory day” beats “a heat app.” Climate disaster readiness can cut across all four forces.

Each force lists problems worth solving; the build ideas below show where to start.

Build ideas by force

Force Build ideas
Water Street-level flood alerts from tide and rain data; flood-safe routing for commuters and ambulances; a water-quality checker for beaches and canals
Air A hurricane-prep copilot in English, Spanish and Haitian Creole; an offline-first info hub for when cell networks go down; air-quality alerts for people with asthma
Land A benefits navigator that matches families to the programs they qualify for; a live shelter-bed and food-pantry finder; a traffic-and-flood commute planner
Fire Heat-risk alerts for outdoor and construction crews; a cooling-center finder; a climate-risk and home-insurance explainer for homeowners
Guidelines

Name your force (or forces) and the specific people you serve, in your README and your demo.
Ground it in Miami: local data, real neighborhoods, and the languages people here speak.
Show the moment of use: who opens it, when, and what they do next.