Operator // Builder // Writer // Systems
Full-time at Auscoast Fire Services. Outside that, I build practical software, explore AI and automation, and write about useful systems.
Fire protection is my working world: field service, recurring obligations, real risk, paperwork, and operational friction. I observe it, build small tools for it, and document what survives contact with real work.
"AI will do to the human mind, what the bicycle did for human movement."
What this work is about
Where the work starts: hours, callouts, scheduling, routing, paperwork, and the compliance layer that cannot be skipped.
VIEW AREA ↗Agent memory, voice, local models, and browser assistants that do the mechanical parts and leave judgment with people.
VIEW AREA ↗The lab layer: small public tools that earn their place or get retired honestly.
VIEW AREA ↗Things by me
A pi extension that shows a five-word summary of the latest user prompt in the status bar, with a local fallback when model access is unavailable.
mnemosyne-hermesA local-first memory and agent-orchestration system for Hermes and MCP-compatible agents. Forked from rand/mnemosyne and materially adapted here.
pi-deepseek-peakA pi package that shows DeepSeek's PEAK/OFF-PEAK pricing phase and account health in the status bar.
Route-O-MaticMap optimization and routing experiments for field-service days.
Logseq HousekeeperScans Logseq graphs for unlinked mentions and adds sensible wikilinks.
finalcut.aiA social platform for AI agents. The public site is live; adoption has not been measured.
UpTick HoursVisualization work around hours, attention, and rhythm in field operations.
Prompt PaulA context-aware browser AI assistant for selected text, pages, media, documents, web grounding, and guarded page actions.
An unofficial planner for placing Ecovacs GOAT G1 beacons.
utilviewerA browser tool for viewing .util archives. Processing happens locally.
WhatsApp Desktop WebappA lightweight desktop wrapper for WhatsApp Web, with a public Windows installer.
VectraA browser tool for making mathematical patterns and exporting SVG or PNG.
ccswapA cross-platform CLI for switching Claude Code settings profiles.
WritingsNotes on AI, business, investing, and operating principles.
One at a TimeA podcast built around one idea at a time.
GoodreadsBooks I am tracking, saving, and re-reading.
Reading listCurrent titles and the books on my desk.
Free LLM TrackerA public tracker for free and open-source AI models, using current model and benchmark data.
The full archive is grouped by discipline, with case files for the work that has a write-up.
Writings
How a two-loop agent memory stack uses SQLite and Mnemosyne for durable, searchable, self-improving memory.
A risky BYD Seal software downgrade intended to restore Android APK sideloading on the car's screen.
The Pursuit of Efficiency In the fast-paced world of business, efficiency has long been heralded as the ultimate goal.
Dive into Charlie Munger's profound insights on psychological tendencies and their impact on success. Explore how embracing these principles can help navigate life's challenges triumphantly.
Using an AMEX charge card to take the cashflow cycle from 30 days to 85+ days and getting win-win outcomes for our suppliers.
One thing that has alluded me for a very very long time is a way to capture notes and thoughts in a way that could retain the context and connections....meet [[LoqSeq]]. (pronounced log sek)
Listening
Reading
Podcast
The podcast where I explore one thought-provoking idea at a time. It is a place for technology, business, investing, and whatever else is worth sitting with for a while.
Prompt Paul
Prompt Paul is a Chrome extension for context-aware AI work in the browser. It keeps selected text, page content, media, PDFs, and bounded document text beside the current page, with optional web grounding and guarded page actions.
The full write-up: problem, intervention, constraints, and honest limitations.
Read the case fileReferral links
About
I care about AI, business, investing, and the mechanics behind how useful things get made. Most of the work here sits somewhere between software, field operations, and personal operating systems.
FULL PROFILE ↗Contact
Use email for collaborations, questions, project notes, or anything that should not get lost in a feed. Welcome: Operational problems that need a builder; Fire-protection and field-service workflow questions; Product feedback on anything in the archive; Introductions to people solving real operations problems. Not a fit: anything that needs a certified compliance decision from an AI.
FAQ
Juan Mackie is a builder, writer, and observer of systems based in Australia. He works across fire protection, operations, AI, and business design, turning messy workflows into safer, clearer systems.
Full-time at Auscoast Fire Services. Outside that, he builds practical software, explores AI and automation (agent memory, voice, browser tools), and writes about useful systems. Fire protection is the working world he observes from the inside.
Prompt Paul is a Chrome extension built by Juan Mackie for context-aware AI work in the browser. It can work from selected text, page content, media, PDFs, and bounded document text, with optional web grounding, guarded page actions, provider connections, and recovery controls.
One at a Time is a podcast hosted by Juan Mackie that explores one thought-provoking idea per episode. Topics include technology, business, investing, and whatever else is worth sitting with for a while. Available on Spotify, Apple Podcasts, Overcast, and other platforms.
The public archive includes Prompt Paul, finalcut.ai, Last P, pi-deepseek-peak, ccswap, Logseq Housekeeper, WhatsApp Desktop Webapp, utilviewer, Vectra, the Ecovacs GOAT G1 beacon planner, Free LLM Tracker, and mnemosyne-hermes as a maintained fork. Each entry links to a public repository or live product surface, with fork provenance shown where it matters.
By email at juan.mackie@gmail.com. No form and no queue; mail gets read. Operational problems, partnerships, product feedback, and introductions are welcome.