Install Yarn
https://linuxize.com/post/how-to-install-yarn-on-ubuntu-18-04/
Install Node
curl -sL https://deb.nodesource.com/setup_10.x -o nodesource_setup.sh
sudo bash nodesource_setup.sh
Run Yarn
yarn
Create PDF sheet of labels
yarn [coin] [number of sheets (optional)]
ie
yarn doge
yarn ltc
Create several PDF sheets
yarn ltc 8
yarn doge 10