Sequelize Models: Users, Boards, Lists, Cards
Boards belong to 1 Owner(User) (1 to many) Lists belong to 1 Boards (1 to 1) //With through table to map lists to User(Owner) Cards belong to 1 Lists (1 to many) Cards belong to multiple Users (many to many) Users(Members) belong to multiple Boards (many to many) (Refer to Mimir's Market)