Scaling

Growing a system from one box to millions of users: the ordered sequence of bottlenecks and the remedy each one forces — split, replicate, cache, autoscale, shard, decouple.

Explainers

• From One Server to Millions of Users — The scaling journey as a playable timeline. Start with everything on one box, then let each real bottleneck force the next move — split the database, load-balance a stateless web tier, add read replicas, cache, autoscale across zones, shard, and decouple write bursts with queues.