There are 2 sections in the demo
Uploading/Tile Generation: This is the root path for the app. Upload a picture and it will become available for use in the mapping section.
Mapping Section: At /map this lets you play around with markers and maps. You will need to manually change /public/js/main.js so that the tile path points to your uploaded tiles in /public/layers/{tilename}
Install NPM packages npm install
Install the GDAL library brew install gdal
Install redis brew install redis
Launch Redis redis-server
In project directory npm start