Step 1: Choose a Platform Built for Scale
Verify participant limits on your plan before the event — free tiers vary widely.
Step 2: Use QR Codes on Every Screen
Physical signage plus on-screen QR codes maximize join rates in large rooms.
Step 3: Moderate Q&A Aggressively
At scale, unmoderated Q&A overwhelms speakers — filter and rank by upvotes.
Step 4: Test with a Full Load Rehearsal
Simulate expected concurrency in a dress rehearsal to catch latency issues.