21 real-time engines. Zero mockups. Every click hits a real database. Every update arrives via WebSocket in milliseconds. This isn't a prototype — it's production infrastructure.
The same battle-tested pattern powers all 21 engines. Boot, authenticate, fetch, render, listen, recover.
Each engine follows the same boot → auth → fetch → render → WebSocket → demo-fallback pattern.
Six non-negotiable rules that every engine follows.