The PrepSync Blog
Interview prep & tech career guides
Honest, no-fluff advice on acing interviews, writing a CV that gets read, and landing tech roles across Nigeria and Africa.
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System Design11 min read
From 1 to 1,000,000 Users: A System Design Story
How a simple app grows into a system that serves a million users — load balancers, caching, CDNs, read replicas, sharding and queues, explained step by step with diagrams.
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