Playbooks & production notes

Performance

Production performance checks for databases, queries, concurrency, caching, and the bottlenecks that stay hidden while an AI-built app has one user.

The bottlenecks that stay invisible while an app has one user: unpooled connections, missing indexes, unbounded selects, and N+1 loops. For founders whose app got slow the week signups grew. Start with "Is Supabase Slow, or Is It Your Queries?", then "Why Your AI App Stalls at 100 Concurrent Users".