Posted by jdwalling on September 5, 2017 at 8:44pm
Poking the Drupal 8 bear:
"If you've been holding back from using Backdrop because your site requires the popular and powerful CiviCRM, hold back no longer. You can now easily install CiviCRM on Backdrop, or migrate it from your Drupal 7/CiviCRM setup."
https://backdropcms.org/news/official-civicrm-support-backdrop-cms