Install Instructions - Ubuntu 20.04

[Jieiku]

Ubuntu 20.04 install instructions:

sudo apt-get update
sudo apt install git curl gcc g++ make libjpeg-dev

sudo apt install ca-certificates fonts-liberation libappindicator3-1 libasound2 libatk-bridge2.0-0 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgbm1 libgcc1 libglib2.0-0 libgtk-3-0 libnspr4 libnss3 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 lsb-release wget xdg-utils

curl -sL https://deb.nodesource.com/setup_14.x | sudo bash -
sudo apt -y install nodejs

git clone https://github.com/YellowLabTools/YellowLabTools
git clone https://github.com/YellowLabTools/YellowLabTools-server
cd YellowLabTools-server
npm install
node bin/server.js

This has everything working for me except for the screenshot.

There is also a discrepancy, the online tool https://yellowlab.tools/ shows CSS complexity: Complex selectors count for those with 4 or more. (as the page description says)

but the self hosted version appears to be doing 3 or more despite the page description saying 4 or more.

EDIT: here is my simple service file to run it automatically:

[Unit]
Description=YellowLabTools Server
After=network.target

[Service]
Type=simple
User=ylt
Group=ylt
RemainAfterExit=yes
ExecStart=/usr/bin/node /home/ylt/YellowLabTools-server/bin/server.js

[Install]
WantedBy=default.target