Install composer:
# old
curl -sS https://getcomposer.org/installer | /usr/local/php-8.0-httpd-2.4/bin/php
# new (4 steps) https://getcomposer.org/download/
/usr/local/php-8.0-httpd-2.4/bin/php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
/usr/local/php-8.0-httpd-2.4/bin/php -r "if (hash_file('sha384', 'composer-setup.php') === '906a84df04cea2aa72f40b5f787e49f22d4c2f19492ac310e8cba5b96ac8b64115ac402c8cd292b8a03482574915d1a8') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
/usr/local/php-8.0-httpd-2.4/bin/php composer-setup.php
/usr/local/php-8.0-httpd-2.4/bin/php -r "unlink('composer-setup.php');

Update composer phar file
/usr/local/php-8.0-httpd-2.4/bin/php composer.phar selfupdate

Install something:
/usr/local/php-8.0-httpd-2.4/bin/php composer.phar require something/something

Update all installed:
/usr/local/php-8.0-httpd-2.4/bin/php composer.phar update

Or update only one package:
/usr/local/php-8.0-httpd-2.4/bin/php composer.phar something/something

Install AWS SDK:
/usr/local/php-8.0-httpd-2.4/bin/php -d memory_limit=-1 composer.phar require aws/aws-sdk-php

Install zipStream:
/usr/local/php-8.0-httpd-2.4/bin/php composer.phar require maennchen/zipstream-php