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ETHRX · Field Notes

The Blog

Engineering writing on resilient networks, the tactical edge, zero-trust, and private AI — the thinking behind the systems we build.

Release NotesJul 22, 2026 · 3 min read

DRAGON 1.2.0 — From Smarter Terminal to Workflow Tool

DRAGON 1.2 adds Collection Runs, automatic reconnect, and a full light mode — extending what the copilot can do without ever letting your data leave the room.

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TechnicalJul 19, 2026 · 8 min read

The Log Is the Product: Tamper-Evident Audit Trails for AI at the Console

An AI that touches production has to be able to prove what it read and did. Here's the hash-chained audit trail and redaction boundary that make DRAGON accountable by default.

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TechnicalJul 16, 2026 · 9 min read

Retrieval First, Answer Second: Grounded AI for Network Operators

A confident wrong answer is worse than no answer at a 2 a.m. outage. Here's why grounded, evidence-first retrieval beats a chatty cloud model for network operators.

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Field NotesJul 13, 2026 · 3 min read

The Hidden Cost of Flat Networks at the Tactical Edge

A single broadcast domain in the field is a reliability and security liability hiding in plain sight. Here's why flat networks fail under pressure — and the segmentation pattern that holds.

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TechnicalJun 28, 2026 · 1 min read

Private AI, Inside the Perimeter

You don't have to choose between using modern language models and keeping your data off someone else's servers. Open-weight models run entirely inside your network — here's the architecture.

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