Hey, it's time to build our Taskify application end-to-end. First, let's go back to building a proper API layer using Spring and then revisit Ember to build the frontend SPA. We will use Spring Data to connect to and access data from the API server.

For simplicity, we will not apply any security to the server; we will just focus on performing CRUD operations on two models: User and Task. Both User and Task are related to each other: Task belongsTo User. We will build models on both (server and client) sides. Let's see how both technologies work together without having direct dependencies on each other.