Hoan Luubackend · hanoi
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Notes & signals

Featured story, then the three most recently updated notes — learns, viewpoints, and systems writing as it lands.

BuildHow this site shipped with AI

Featured

How this site shipped with AI

Directed AI build of this portfolio — workflow, Cursor spend, and token receipts refreshed at build time from local logs.

Aug 2, 2026Build~5m

  • AI

    Aug 3, 2026AI~6m

    The harness matters more than the model

    Agentic and testing harnesses are the control plane behind AI coding — and where token spend actually diverges between tools.

  • AI

    Aug 3, 2026AI~6m

    AI coding quality gates that scale

    Human-in-the-loop supervision, CI routing, and incident playbooks — how to ship fast agent output without rubber-stamp reviews.

  • Notes

    Aug 1, 2026Notes~1m

    Hello from the signal map

    First note on this site — why a single recruiter touchpoint matters.

  • Learns

    Jul 30, 2026Learns~3m

    What load balancers taught me about deploys

    Drain, health checks, and why cutovers stay boring when traffic already knows where to go.

  • Viewpoint

    Jul 20, 2026Viewpoint~5m

    Agents write; taste still ships

    Why directing product and visual judgment beats typing every line by hand — and what that does not excuse.

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Hoan Luu

Senior Backend Engineer · Web3

Hanoi, Vietnam

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