Behind the scenes, this chatbot is powered by a standalone FastAPI backend. The API uses a curated biography document as its knowledge base. When you ask a question, the backend selects the most relevant sections from that document and sends them to OpenAI to generate a concise answer based on Andres's profile.

The chatbot is designed with simple guardrails: it should answer only from the provided biography context and avoid inventing experience, dates, companies, or results. The portfolio site calls the chatbot through a server-side Next.js API route, which keeps API keys and shared secrets out of the browser.