Appendix - Install Yarn
Mac OS:
Use Homebrew to install yarn
brew install yarn --without-node
Ubuntu:
Step 1:
Add Yarn's repository to Debian package repository
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
Step 2:
Install yarn with apt
sudo apt-get update && sudo apt-get install yarn
Windows:
Install via Windows Installer
https://yarnpkg.com/latest.msi