Add the 2 Geograph fonts into the /src/Geograph directory:
Geograph/GeographWeb-Regular.woff2Geograph/GeographWeb-Regular.woffGeograph/GeographWeb-Bold.woff2
npm install;
npm start;
Then head to https://localhost:3000/ for the sign up form. If you'd like to checkout the buttons: https://localhost:3000/buttons.