Built a voice bot today that answers questions in real time with citations. The core constraint was simple but hard to implement: every answer must prove where it came from. That forced careful knowledge base design — not just storing information but structuring it so the retrieval layer can trace every sentence back to a source. Added multilingual support, three response personas, and a session export. The citation matching system scores each source chunk and shows confidence percentage on every answer. One thing not finished: voice output in non-English languages — the text response comes correctly but the speech synthesis defaults to English. Fixing that tomorrow. A demo that almost works is not a demo.