These directions assume a Linux platform, particularly Ubuntu.
sudo apt update
sudo apt install build-essential python libunbound-dev
(Or follow instructions from: https://github.com/nodesource/distributions/blob/master/README.md#installation-instructions)
sudo apt install nodejs
sudo apt install npm
export NODE_PATH=`npm root -g` # you may want to also add this line to ~/.profile
sudo npm install n -g
sudo n lts # at time of writing, LTS is version 12.18.2
npm install -g node-gyp -g # one more requirement, you may already have installed
git clone https://github.com/pinheadmz/handout
cd handout
npm install