On a Mac, must be running Node and NPM: https://medium.com/@kkostov/how-to-install-node-and-npm-on-macos-using-homebrew-708e2c3877bd
On a Windows system, must install the Linux Subsytem first: https://medium.com/@edwardbaeg9/using-homebrew-on-windows-10-with-windows-subsystem-for-linux-wsl-c7f1792f88b3
Once the development Node/NPM environment is setup, install yarn
globally:
brew install yarn
yarn install
yarn run serve
yarn run build
yarn run test
yarn run lint
yarn run test:e2e
yarn run test:unit