The developer decides to create two checklists associated with the Development stage, one to help them track the backend changes they need to make (database schema, API, etc.) and one to help them track the frontend changes. On the board, the ticket's card is now in the Development stage, so it shows a small progress bar depicting these two Development-related checklists (but not the Design checklist). Now it's visible at a glance to the PM how development is coming along.