Dan Cowsill

Selected work

AI, applied to
real systems.

I use AI inside the work: to operate infrastructure, make complex source material useful, and build software. These projects show the context, evidence, and judgment behind the result.

A luminous dandelion seed head with fine silver filaments and a few seeds drifting into the air.

01—02 Systems in practice

Operate / Retrieve

03 / Detect

Watch the systems,
including the agents.

Security monitoring for my home lab, from the router to the AI agents that help run it.

Ten hosts and network devices, custom detections, read-only access for agents, and every tuning change reviewed by me before it goes live.

Home lab SIEM

04 / Investigate

Before the first prompt,
follow the data.

A review of 76 inference providers: who runs the model, where the data travels, and what the policies actually say.

Structured research, explicit decision criteria, and a searchable provider register. Published as a historical assessment from July 2026.

OpenRouter due diligence

05—06 From source to something useful

Design / Learn

07 Other experiments

Useful, on a smaller scale

Software / Collections

Private collection software

A catalogue that understands the difference between a title, an edition, and the copy on a shelf. Bibliographic lookup and two ways to browse a Stephen King collection.

Hardware / Protocol exploration

An air purifier, without the app.

A command-line tool to read air-quality data and control a Winix purifier, built by tracing how the device communicates. It still uses the manufacturer’s cloud.

winixctl status