3_install_composer.md

run sudo apt update

install required extensions for composer sudo apt install curl php-cli php-mbstring unzip

install composer

cd ~
curl -sS https://getcomposer.org/installer -o composer-setup.php
sudo php composer-setup.php --install-dir=/usr/local/bin --filename=composer

verify running composer

also run below command to make composer executables available to run directly.

echo 'export PATH=$PATH:$HOME/.config/composer/vendor/bin' >> ~/.zshrc