Update structure to domain driven architecture.

cmd/app/main.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	tea "charm.land/bubbletea/v2"
+)
+
+type model struct {
+	name     string
+	sayHello bool
+}
+
+func initialModel() model {
+	return model{
+		name:     "jason",
+		sayHello: false,
+	}
+}
+
+func (m model) Init() tea.Cmd {
+	// any init commands like fetching data etc
+	// to populate model if need be
+	return nil
+}
+
+// Update loop like a game
+func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+
+	// Handle key presses
+	case tea.KeyMsg:
+		switch msg.String() {
+		// Quit the app
+		case "ctrl+c", "q":
+			return m, tea.Quit
+
+		// Toggle the greeting
+		case "enter", " ":
+			m.sayHello = !m.sayHello
+		}
+	}
+
+	return m, nil
+}
+
+// View: Returns a string representing the UI. like a render method
+func (m model) View() tea.View {
+	s := "nfeeder Dev Console\n"
+	s += "-------------------\n\n"
+
+	if m.sayHello {
+		s += fmt.Sprintf("Hello, %s! Nice to see you.\n\n", m.name)
+	} else {
+		s += "Press ENTER to say hello.\n\n"
+	}
+
+	s += "Press 'q' to quit.\n"
+
+	return tea.NewView(s)
+}
+
+func main() {
+	p := tea.NewProgram(initialModel())
+	if _, err := p.Run(); err != nil {
+		fmt.Printf("Alas, there's been an error: %v", err)
+		os.Exit(1)
+	}
+}