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Essays & notes

Notes on systems, teams, and tools — useful first, loud never.

  • 12 Mar 20266 min read
    Shipping with signal, not noise
    How small teams can keep velocity high by tightening feedback loops and making observability a first-class habit.
    CultureSystems
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  • 2 Feb 20268 min read
    Practical notes on distributed design
    Idempotency, backpressure, and graceful degradation — patterns I reach for when scaling services beyond a single region.
    BackendArchitecture
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  • 18 Jan 20265 min read
    Why I still build small tools
    Tiny utilities teach empathy for users and sharpen the same skills that matter in large platforms.
    DXProduct
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Wayne Yu

Hong Kong–based software engineer building large-scale distributed systems and customer-centric products.

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