https://www.drupal.org/node/2942572
Support CiviCRM + Drupal 8 + Composer [#2942572] | Drupal.org
Apr 17, 2018 - Currently a way to install CiviCRM + Drupal 8 using Composer is following this steps. In the near future there will be support to install CiviCRM as a php...
support civicrmdrupalcomposer