git clone https://github.com/magento/magento-cloud.git
cd magento-cloud
composer install
composer require magento/extension-b2b
./vendor/bin/ece-docker 'build:compose' --mode=developer --no-varnish --with-xdebug --set-docker-host --with-entrypoint
docker-compose up -d
# set a crypt key
pico app/etc/env.php
# replace "mysqladmin" by "mariadb-admin"
pico docker-compose.yml
docker-compose run --rm deploy cloud-deploy