This tutorial guides readers through building a blog application from scratch using a stack of modern web technologies, including Next.js, Clerk, tRPC, Prisma, and others. The tutorial begins with setting up a Next.js application and integrating Clerk for user management and authentication, followed by deploying the app on Vercel and setting up a Neon serverless Postgres database. Prisma ORM is used to connect and manipulate the database, while Tanstack Query and tRPC are introduced to enhance data fetching, caching, and type safety. The tutorial also covers creating protected procedures using Clerk’s authentication context, ensuring certain routes are accessible only to authenticated users. Throughout, the tutorial emphasizes type safety and best practices, such as using tRPC for type-safe API endpoints and leveraging Clerk's authentication for secure user interactions. The blog app is designed to allow users to create and read posts, with the potential for adding more features like updating and deleting posts, commenting, and integrating richer user data.