Clone the repo using either git clone git@github.com:skornous/sandboxaoc.git
or git clone https://github.com/skornous/sandboxaoc.git
Then you can cd into the newly created directory, install the dependencies and start the test server in watch mode using the following commands:
cd sandboxaoc
npm install
npm start
or in one line: cd sandboxaoc && npm install && npm start