curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
- source ~/.bashrc
- nvm install v11.8.0
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
- sudo apt-get update
- sudo apt-get install upgrade
- sudo apt install --no-install-recommends yarn # because Node.js is already installed