The SDA Stack—comprising SQLite3, Django, and Astro—is a semi AI-powered programmatic SEO stack designed specifically for building structured, SEO-optimized directory websites. SQLite3 enables agile data handling, Django provides a robust and secure backend with API capabilities, and Astro delivers fast, static site generation. As the technical foundation of SLONQ, this stack emphasizes simplicity, performance, and scalability, allowing for efficient mass page generation and seamless integration.