1. Install node.js
curl -sL https://deb.nodesource.com/setup_14.x -o nodesource_setup.sh
sudo bash nodesource_setup.sh
sudo apt install nodejs
node -v
2. Install MongoDB

2.1 Install libssl1.1
echo "deb http://security.ubuntu.com/ubuntu impish-security main" | sudo tee /etc/apt/sources.list.d/impish-security.list
sudo apt-get update
sudo apt-get install libssl1.1

2.2 Install MongoDB
curl -fsSL https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add -
apt-key list
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list
sudo apt update
sudo apt install mongodb-org
sudo systemctl start mongod.service
sudo systemctl status mongod
sudo systemctl enable mongod
mongo --eval 'db.runCommand({ connectionStatus: 1 })'

3. Install GenieACS
http://docs.genieacs.com/en/latest/installation-guide.html#install-genieacs