The cards were created by more than fifty volunteers from diverse organizational backgrounds who collaborated over three years to express the core wisdom at the heart of successful group sessions.
The site existed in Drupal 7 for 10 years. A migration to Backdrop was chosen, as the site still required a CMS, since there are many membership participations.
The D7 site largely used components of Drupal Commerce, overkill for their one product, and rather than build an alternative store, we chose to embed Shopify Lite.
Another solution solved members using the D7 location module, not working in Backdrop, and also overkill here, using feeds in D7 to transform location fields to addressfield.
The migration went really well, from the front end, besides some subtle improvements, differences can not be detected.
Development by Echozone.