FireGEO is an open-source SaaS starter designed to quickly build applications with authentication, billing, AI chat, and brand monitoring features. It is based on Next.js 15, TypeScript, and PostgreSQL, and is suitable for developers looking to quickly deploy SaaS services. The product emphasizes zero-configuration setup and automated installation processes, helping developers save time and effort. The product is available on GitHub and is suitable for individual developers and startups, offering high flexibility and scalability.