Python 3.8, PHP 7.4, Yarn, NodeJS 10 Ubuntu 18.04

packages.sh

#!/bin/bash

# PHP 7.4
sudo apt install software-properties-common
sudo add-apt-repository ppa:ondrej/php
sudo apt update
sudo apt install zip unzip
sudo apt install php7.4 php7.4-common php7.4-opcache php7.4-cli php7.4-gd php7.4-curl php7.4-mysql php7.4-xml php7.4-zip
php -v

# without NVM
# NodeJS 10
curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash -
sudo apt-get install gcc g++ make
sudo apt install nodejs
node --version

# Yarn
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 update
sudo apt install yarn

# Composer
sudo apt update
sudo apt install wget php-cli php-zip unzip
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer
composer

# Python
sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt install python3.8
python3.8 --version