System Design Studio
One AWS-first system design a day, written as an architecture-review transcript — proposed, critiqued, defended.
Pattern coverage
ingestionstoragecachingsearchmessagingrealtimegeorate-limitingid-generationcoordinationmedia-cdnanalytics-olapml-servingpayments-exactly-oncenotification-fanout
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Distributed rate limiting at API gateway scale
One INCR is easy; one million requests/second across 10k tenants without a race, a thundering herd, or a cross-region round-trip is the interesting version.
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Real-time notification fan-out
One event, millions of connected clients, near-real-time delivery — without a single component melting under the fan-out.