A simple persistent todo list application built with:

• Backend: Hono API framework with SQLite database
• Frontend: React with TypeScript
• Styling: TailwindCSS

• ✅ Add new todos
• ✅ Mark todos as complete/incomplete
• ✅ Delete todos
• ✅ Persistent storage with SQLite
• ✅ Real-time updates
• ✅ Responsive design
• ✅ Loading states and error handling

├── backend/
│   ├── database/
│   │   ├── migrations.ts    # Database schema
│   │   └── queries.ts       # Database operations
│   ├── routes/
│   │   └── todos.ts         # Todo API routes
│   └── index.ts             # Main Hono app
├── frontend/
│   ├── components/
│   │   ├── App.tsx          # Main React component
│   │   ├── TodoItem.tsx     # Individual todo component
│   │   └── TodoForm.tsx     # Add todo form
│   ├── index.html           # HTML template
│   └── index.tsx            # React entry point
├── shared/
│   └── types.ts             # Shared TypeScript types
└── README.md

• GET /api/todos - Get all todos
• POST /api/todos - Create a new todo
• PUT /api/todos/:id - Update a todo
• DELETE /api/todos/:id - Delete a todo

The app runs on Val Town with automatic deployment. The backend serves both the API and static frontend files.

1. Visit the application URL
2. Add new todos using the input form
3. Click the checkbox to mark todos as complete/incomplete
4. Click the delete button (trash icon) to remove todos
5. All changes are automatically saved to the SQLite database

The application includes initial data injection to avoid extra API calls on page load, providing a smooth user experience.