The best way to build on top of Trello is to create a Power-Up! With Power-Ups you can add buttons to cards and boards, show previews of attachments on Trello cards, and much more - all inside of Trello! Power-Ups add extra functionality inside of Trello and let you and your team work with more perspective. Some Power-Ups help you automate your workflows, others give you a new view into the data y