Operator // Builder // Writer // Systems
I build practical AI and automation systems for real-world businesses, starting with fire protection.
Field service, fire protection, and the unglamorous work that keeps businesses moving. I build tools, test ideas, 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 ↗Text agents, local models, and browser assistants that do the mechanical parts and leave judgment with people.
VIEW AREA ↗The lab layer: public repos, widgets, and generative work that either earns a place in production or gets retired honestly.
VIEW AREA ↗Things by me
A document graph workbench for extracting, exploring, and exporting relationships.
pi-deepseek-peakA pi package that shows DeepSeek PEAK/OFF-PEAK pricing and account health in the status bar.
Logseq HousekeeperScans Logseq graphs for unlinked mentions and adds sensible wikilinks.
Route-O-MaticMap optimization and routing experiments for field-service days.
UpTick HoursVisualization work around hours, attention, and rhythm in field operations.
Prompt PaulAI-powered text assistant in the browser. Short feedback loops for selected text, without ceremony.
Math art and generative motion studies.
VectraA vector graphics tool for creating editable SVG exports.
WhatsApp Desktop WebappLightweight native desktop wrapper for WhatsApp Web.
Ecovacs Goat G1 Beacon OptimizerPlacement optimizer for device coverage.
utilviewerLightweight .util file viewer, live on GitHub Pages.
ccswapClaude Code profile manager.
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.
Nothing Style LastFM WidgetA widget inspired by the Nothing UI language.
Small-footprint local AI experimentation. Repository no longer public.
A pi extension that dynamically registers NanoGPT models.
Croft AI Dynamic Provider ExtensionA pi extension that dynamically registers Croft AI models.
A live project that is now deprecated.
A production project now retired.
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.
This downgrade allows the sideloading off APK's (Android Apps) which is a MASSIVE upgrade and absolute game changer
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 that helps process selected text quickly with AI. It is built for practical use, not ritual.
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.
Practical AI and automation for real-world businesses, starting with fire protection. The work sits between field-service operations, software, and the recurring-service models that make both durable.
Prompt Paul is a Chrome extension built by Juan Mackie that allows users to process selected text quickly with AI. It is built for practical use, with short feedback loops for text processing.
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.
Projects include Prompt Paul (Chrome extension), UpTick Hours, Route-O-Matic (routing experiments), Logseq Housekeeper, ccswap, utilviewer, and generative-art experiments. Every project carries an honest status label, from Live to Retired.
By email at juan.mackie@gmail.com. No form and no queue; mail gets read. Operational problems, partnerships, product feedback, and introductions are welcome.