HelloService and TodoService - servicestack

Question

ServiceStack self host windows service question, at the link there are two Services: TodoService.cs and HelloService.cs.
I am a little confused, are they different examples or related each other?
//Register REST Paths
[Route("/todos")]
[Route("/todos/{Id}")]
public class Todo //REST Resource DTO
{
public long Id { get; set; }
public string Content { get; set; }
public int Order { get; set; }
public bool Done { get; set; }
}
//Todo REST Service implementation
public class TodoService : RestServiceBase<Todo>
{
public TodoRepository Repository { get; set; } //Injected by IOC
public override object OnGet(Todo request)
{
if (request.Id == default(long))
return Repository.GetAll();
return Repository.GetById(request.Id);
}
//Called for new and update
public override object OnPost(Todo todo)
{
return Repository.Store(todo);
}
public override object OnDelete(Todo request)
{
Repository.DeleteById(request.Id);
return null;
}
}
And
/// <summary>
/// Define your ServiceStack web service request (i.e. the Request DTO).
/// </summary>
[Description("ServiceStack's Hello World web service.")]
[Route("/hello")]
[Route("/hello/{Name*}")]
public class Hello
{
public string Name { get; set; }
}
/// <summary>
/// Define your ServiceStack web service response (i.e. Response DTO).
/// </summary>
public class HelloResponse : IHasResponseStatus
{
public string Result { get; set; }
public ResponseStatus ResponseStatus { get; set; }
}
/// <summary>
/// Create your ServiceStack web service implementation.
/// </summary>
public class HelloService : ServiceBase<Hello>
{
protected override object Run(Hello request)
{
return new HelloResponse { Result = "Hello, " + request.Name };
}
}

Answer 1

They are separate examples of different services you can build with ServiceStack. The ServiceStack examples are made available in a single solution called ServiceStack.Examples, but it contains separate projects.
You are looking in a directory called StarterTemplates.Common, this is simply shared by several of the examples for code reusability. The folder structure does not indicate that TodoService.cs and HelloService.cs are directly related.
The individual projects of the ServiceStack Examples, can be seen here.
Backbone.js TODO app with REST and Redis backend
Creating a Hello World Web service from scratch