fun main() {
    val items = listOf("write chapter", "insert code", "draw diagrams")
    val toDoList = ToDoList(ListName("book"), items.map(::ToDoItem))
    val lists = mapOf(User("uberto") to listOf(toDoList) )
    val app: HttpHandler = Zettai(lists)
    app.asServer(Jetty(8080)).start() // 서버를 시작
    println("Server started at http://localhost:8080/todo/uberto/book")
}