Quick share for the July 2026 n8n challenge results. The workflow: "Analyse tender PDFs with LlamaParse, Gemini, Supabase and WhatsApp chat" ranked #10 worldwide in total inserts, out of hundreds submitted globally. What it does: upload a contract, tender, or compliance document. Ask it a question on WhatsApp or Telegram, and it replies with the answer, cited to the exact clause. No re-reading a long document to find one deadline three weeks later. Under the hood, it's a RAG based chatbot. Documents get semantically chunked so clauses stay intact, then stored as vectors in Supabase and retrieved on demand. Answers come from the exact section, not a model recalling it from memory. Built this for procurement and contracting teams who deal with dense documents every week. Ranking well is nice, but it's actually being used that matters more. Happy to break down the build if anyone wants to see how the pieces fit together. My official n8n creator profile: https://n8n.io/creators/divyanshugupta