This is a Flutter TODO app containing lists of tasks to be done or checklists to be ticked off.
Tasks are broken down into a hierarchy of collections, groups, and tasks.
You can plan all the one-off or periodic tasks you need to do.
Periodic tasks can be reset back to the beginning so that they can be reused repeatedly.
You can create checklists such as one containing all the items you need to pack for a holiday.
Normal tasks have a check box which cycles between; TODO, In-Progress, and Complete.
Checklist tasks have a check box which switches between; TODO and Complete.
A long press marks a task or checklist item as X - Excluded.
At the group and collection levels the check box shows a read-only aggregate status of the child tasks contained within.