Writing

The Matrix blog.

Engineering notes, product reasoning, and the occasional argument with the prevailing wisdom. Written for the people who have to make filing actually work.

Product

I changed my mind. The Matrix is for one person, not a company.

Nine months pitching this as a small-business tool. Wrong call. One SKU now: A$29/month, you, your laptop, your folders. Email me a few sample docs and I'll mail you a pre-configured installer.

11 May 2026 · ~6 min read

Engineering

Why we built a document sorter without AI.

A 92% accurate filing system is a 100% broken filing system. The case for deterministic, HMAC-signed document classification over cloud OCR and AI classifiers in regulated verticals.

25 April 2026 · ~9 min read