The tutorial provides a step-by-step guide to building a to-do list application using modern web development tools and services without writing any backend code. It leverages Clerk for authentication, Hasura Cloud for creating a frontend-accessible GraphQL API, Heroku Postgres for data storage, Next.js for frontend development, and Tailwind CSS for styling. By using these tools, developers can create a robust application where user authentication is managed by Clerk, data is managed through Hasura's GraphQL API, and the frontend is built with Next.js and styled with Tailwind CSS. The guide explains setting up and deploying the application on Vercel, configuring the Hasura backend to handle CRUD operations with proper permissions, and integrating the frontend to interact with the backend using Apollo Client for GraphQL queries and mutations. Additionally, it demonstrates how to use Apollo's cache and optimistic responses to enhance the user experience by reflecting changes on the frontend immediately after a mutation, rather than waiting for a server response.