David Pinkerton / Brisbane

I build small, durable products — and run the infrastructure behind them.

Four shipped products, a rack full of Proxmox, and a preference for software that still works in five years. Independent builder and fractional CIO, working remote-first from Queensland.

Brisbane, Australia / Remote-friendly / ABN 26 100 857 151 / About me

KinBook

Live

Your story, woven together.

A collaborative book service. Invite the people who were there — they send text, voice recordings, and photos — and Claude weaves everything into a continuously evolving narrative that reads like a real book. Works for family histories, group trips, tributes, team seasons. Print-ready PDF export, passkey-first sign-in, adaptive international pricing. Built from scratch over 2025 as the culmination of the “books are the best interface we have for making sense of a life” instinct.

SvelteKitSvelte 5ClaudeWhisperPostgreSQLTypstStripeBackblaze B2

mHub

Live

Laser-cut metal fabrication, priced in seconds.

Multi-supplier quoting platform for laser-cut metal fab. Customers upload DXF flat sheet, STEP, or NC1 tube files; the quoting engine parses geometry, prices the job, and takes Stripe payment. Orders route to suppliers with purchase orders, job data, and payout pricing. Includes a supplier portal for stock, pricing, and test-certificate management — with Claude-backed validation of cert PDFs.

Next.js 16React 19FastAPICadQueryezdxfClaudeStripeSQLite + WAL

Nostr Dead Man's Switch

Open source

Your normal Nostr usage is your proof of life.

Existing dead man's switches require you to remember to check in — the failure mode is triggering while you're alive but forgot. This one passively monitors your npub across relays. Posts, reactions, zaps — any signed event resets the timer. Go silent for X days and it DMs you a warning; still nothing and it triggers: emails, notes, webhooks, whatever you've configured. No check-in fatigue, cryptographic proof, all inside the protocol.

GoNostrDockerSMTP

CertainKey — proof-of-reserves for Bitcoin SMSFs

Cryptographic proof that your client controls their Bitcoin. Balance confirmed, key control proven, valued in AUD. No funds moved. Built for SMSF auditors.

Learn more
David Pinkerton

Former CyberCX security consultant, 2 years as infrastructure CIO, now building a handful of products and consulting a few engagements at a time. I prefer self-hosted, open-source, and done properly — systems that are yours when the SaaS bill arrives or the acquirer pulls the plug.

Security+ · Essential Eight · 30+ assessments · 50+ containers in prod

When I'm not shipping product, I take on a small number of infrastructure and AI-automation engagements — typically as a fractional CIO or a scoped build.

Fractional CIO

Monthly retainer for infrastructure strategy, security posture, and hands-on delivery. From ~15 hours/month.

Infrastructure builds

Proxmox clusters, ZFS, backups, Tailscale, reverse proxies, Ansible. Scoped projects in 2–6 weeks.

AI automation

Claude-backed document pipelines, lead-capture flows, voice-to-content systems. Self-hosted where possible.

Security & compliance

Essential Eight, ISO 27001, NIST CSF. Wazuh SIEM, authentication hardening, passkeys.

Bitcoin infrastructure

BTCPay, Lightning nodes, Electrs, multisig verification. Someone who runs these in production.

Reviews & second opinions

Architecture reviews, vendor evaluation, disaster-recovery readiness. Short, specific, written up.

For case studies and a fuller breakdown, see dpinkerton.com/services.

Say hi.

If something here sparked a thought — a collaboration, a build, or just a chat about any of this — the inbox is open.