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System Design Daily
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Official Skills Tech content
One system design lesson at a time.
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OfficialSystem design
Designing a global rate limiter that stays fair under load
Fairness, quotas, and multi-region consistency for a rate limiter that holds up in interviews and in production.
System Design Daily·Jul 3, 2026
OfficialArchitecture
Draw boundaries you can defend
A short note on module boundaries: coupling, ownership, and decisions you will not regret.
System Design Daily·Jul 1, 2026