Field Notes.

Architectural post-mortems, hardware telemetry breakdowns, and technical essays from our engineering leads.

[ FEATURED ARCHITECTURAL POST-MORTEM ]

Why MQTT Broker Architecture Fails at Scale — and What We Did Instead

Single-broker MQTT felt fine at 20 nodes. At 200 nodes spread across 40 acres of farmland, it became the single point of failure that took our entire monitoring network offline. Here is the architectural post-mortem and how we replaced it with a peer-to-peer ESP-NOW mesh.

8 MIN READ•MAY 2026

PROTOCOL:ESP-NOW Mesh

NODES SCALED:200+ Active

UPTIME GAIN:99.7%

LATENCY DROP:340ms → 12ms

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IoTHardware

APR 2026

Building a Soil Sensor Network Across 120 Acres: The Engineering Reality

Academic IoT projects use 3 sensors and a breadboard. We built one with 40 nodes, solar charging, WiFi mesh, and a real-time dashboard. This is what they do not teach you.

11 MIN READREAD ENTRY

CybersecurityArchitecture

MAR 2026

Zero-Knowledge Password Management: Why Most "Secure" Vaults Are Not

Most enterprise password managers encrypt data at rest. That is not enough. A true zero-knowledge architecture means the server never sees your plaintext — even during authentication. Here is how we designed CyberVault from that constraint.

7 MIN READREAD ENTRY

SoftwareAPI Design

FEB 2026

The API Design Mistake That Cost Us Three Weeks of Refactoring

We designed a beautiful REST API without thinking about versioning. Six months later, three clients were on breaking changes and we had no clean path forward. This is the refactoring that fixed it — and the rule we now enforce from day zero.

6 MIN READREAD ENTRY

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