Follow the steps on Getting started with Ruby and Neo4j to get Neo4j installed, started, and populate it with some nodes and relationships.
git clone firstname.lastname@example.org:maxdemarzi/neovigator.git cd neovigator bundle rake neo4j:install rake neo4j:start rackup
Then visit localhost:9292 to see it running. The first time you visit the page, it will create a sample graph.
Enter a node id in the text box and click “Load”
See an example running on heroku at neovigator.herokuapp.com