Drupal has been a leader in digital accessibility for over an decade, and open source has played a key role. Mike Gifford has been spearheading accessibility in Drupal, and working with an open community has allowed us to pioneer some new design challenges. Working in the open has allowed us to tap expertise outside of our community. It has also given space for people with disabilities to become involved in a variety of roles. Accessibility best practices make it clear that accessibility needs to be considered at all levels of a project. This talk will draw on the Drupal community but also engagement with other open communities, particularly through the We4Authors Cluster initiative of Funka with the European Commission.