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Deep, recent reads ranked by depth and freshness.

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01Martin Fowler · architecture
When Software Meets Hardware
A software engineering team modernizing a large-scale retail IoT system of 800,000 battery-powered sensors faced challenges integrating software practices with embedded hardware. By building physical sensor farms, virtual emulators, and self-diagnosing firmware, the team learned to design for intermittent connectivity, power efficiency, and fleet-level observability. The project succeeded by treating the physical world, hardware constraints, and engineering environments as core parts of the system lifecycle.
DEPTH ■■■■■12 min read10 days ago
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02Honeycomb · architecture
OpenTelemetry Collector Configuration for LLM Observability
LLM applications emit bulky telemetry containing sensitive user content and disparate attribute names. The team uses an OpenTelemetry Collector pipeline to normalize, enrich, redact, and export this data to Honeycomb. This centralizes control, protects data before it leaves the network, and maintains consistent observability.
DEPTH ■■■■■12 min read2 weeks ago
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03Martin Fowler · performance
Are Harnesses Worth the Cost?
An experiment was conducted to evaluate whether behavioral harnesses improve coding agent reliability when building a complex backend-for-frontend service. While frontier models succeeded consistently with or without a harness, the harness significantly increased token usage, time, and cost without improving final output. However, for a cost-optimized model, the harness improved success rates from 30 percent to 100 percent.
DEPTH ■■■■■17 min read12 days ago
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04Honeycomb · practice
How Honeycomb Private Cloud Drinks From the Fire Hose
The Honeycomb Private Cloud team struggled to manually track and integrate rapid infrastructure and configuration changes produced by upstream teams. To solve this, they built custom scripts to generate automated drift reports and eventually integrated AI to help triage and track the necessary follow-up work. As a result, the team successfully scaled their integration process into a reliable daily workflow.
DEPTH ■■■■■10 min read2 weeks ago
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05Martin Fowler · practice
Fragments: October 21
This post discusses commentary on AI usage in writing, the cancellation of the Grace Hopper Celebration, and reviews a detailed article by Cindy Sridharan on debugging with AI agents. The reviewed article highlights that AI agents excel at processing raw data rather than reading code first, and outlines a three-step debugging process involving controls, signals, and hypothesis validation. The lesson is that engineers must guide AI agents by setting up verification loops and providing raw data rather than human-centric abstractions.
DEPTH ■■■■■5 min read4 days ago
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06Martin Fowler · practice
Practitioner Voice: The Writing Category Nobody has Named Yet
The author explores a missing category of writing called Practitioner Voice, which is grounded in earned experience and visible personal judgment rather than academic rigor, corporate polish, or AI generation. They examine how AI can be used as an extended cognitive tool for practitioners without losing human accountability. Ultimately, the piece argues that maintaining personal judgment and consequence-bearing experience is essential for authentic professional writing.
DEPTH ■■■■■39 min read12 days ago
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07Martin Fowler · practice
Fragments: October 4
This post discusses the evolving role of software development and code in the era of large language models. It explores how shifting from deterministic building to inferential nurturing changes processes, why high-level representations remain critical for managing context windows, and how conceptual modeling becomes more important than the mechanical act of writing instructions.
DEPTH ■■■■■7 min read2 weeks ago
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08Martin Fowler · practice
Principles for effective slides
Presenters often rely on text-heavy slide decks that distract audiences and undermine storytelling. To fix this, speakers can use minimalist slides as a complementary visual channel to control the rate of information and manage cognitive load. This approach leads to more engaging presentations where visuals reinforce the spoken narrative rather than replace it.
DEPTH ■■■■■12 min read3 weeks ago
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