Shouty is a social networking application for short physical distances. When someone shouts, only people within 1000m can hear it.
Shouty doesn't exist yet - you will implement it yourself!
That is, if you're attending a BDD/Cucumber course.
git clone https://github.com/cucumber-ltd/shouty.js.git
cd shouty.js
Or simply download a zip file.
npm install
After this, Cucumber is in ./node_modules/.bin/cucumber.js
For convenience you can run it with ./cucumber.
npm test
If you see two tests failing, you're good to go.