npm i to set up
npm run dev to test on localhost:8080 which proxies to 3000
npm run build creates bundle.js and style.css in /build and npm start tests prod version all on 3000
stretch features:
add multi-user support (find a midpoint for multiple people)
make it mobile! (react)
add db storage so you can store your past searches.
#USE isochroneTest.html to