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Core Building Blocks

API Gateway

Harold

28 May 2026 — 3 min read

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Distributed Sync

Distributed Sync

By Harold 02 Jun 2026

Large File Processing

Large File Processing

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Fanout (Read vs Write)

Fanout (Read vs Write)

By Harold 02 Jun 2026

Real-time Messaging

Real-time Messaging

By Harold 02 Jun 2026

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System Craft

The craft of System Design interviews — by Harold Z.