What is configuration?

This repository is the source for TanStack Router and TanStack Start, a client-first, server-capable, fully type-safe router and full-stack framework for the web. TanStack Router is a routing library. Routing is the mechanism that decides which page or view to show when a user navigates to a URL in your app. It is built around strong type safety, meaning the code knows the exact shape of URL parameters and loaded data before the page renders, which helps catch mistakes during development. It also includes built-in caching, prefetching (loading data before the user clicks), cache invalidation, nested layouts, page transitions, and error boundaries. TanStack Start builds on Router to provide a full-stack framework, meaning it can handle both the browser-side experience and server rendering, which is generating the initial page on the server before sending it to the browser. It supports streaming, which means sending parts of the page as they become ready rather than waiting for everything at once, server functions with the same end-to-end type safety as the router, and deployment-ready bundling and build tooling. The README itself is mostly badges, sponsor links, and pointers to the official documentation and Discord community rather than a detailed usage guide, so most of what a newcomer needs to learn about setup and configuration lives on the linked TanStack docs site rather than in this file. The framework is designed to work with React and other frontend approaches, and the project is part of the wider TanStack ecosystem, which also includes tools like TanStack Query, Table, and DB.