Nx is a powerful build system designed to optimize the development experience, especially for large-scale and monorepo projects. It offers smart dependency graph analysis, which minimizes build times by only rebuilding what’s necessary. Nx supports multiple frameworks like React, Angular, and Node.js, making it highly versatile. Its extensible plugin architecture allows teams to tailor Nx to their specific needs. Additionally, Nx provides excellent tooling for code generation, testing, and project management, enhancing productivity and ensuring consistency across the development lifecycle.