Go to: https://coffaptory.netlify.app/ and play!

• yarn install
• yarn live or yarn debug
• Browse to: http://localhost:8000/
• Play!

But, hey! You'll install elm on you computer, "A delightful language for reliable webapps, with no runtime exception".

• Install elm
• Compile the project: elm make --output=main.js src/Main.elm
• Launch elm reactor
• Browse to: http://localhost:8000/index.html
• Play!