I rethought PlanetLedger after Google Cloud NEXT 2026 — and my architecture broke (in a good way)

This is a submission for the Google Cloud NEXT Writing Challenge A few days ago, I shipped PlanetLedger — a weekend hackathon project that turns bank transactions into environmental impact insights. It has: an event-driven pipeline (OpenClaw) an agent layer with memory RAG-grounded insights deterministic scoring + AI fallback On paper, it looks like a modern AI system. Then I watched Google Cloud NEXT ‘26. And something didn’t sit right. The uncomfortable realisation While going through the anno