Last updated 20 Oct 2026

Operator / Builder / Writer

Juan Mackie.

I work in fire protection. Outside it, I build software, explore practical AI, and write about useful systems.

A personal archive of the work, not a consulting practice.

What this site is

Juan Mackie works full-time at Auscoast Fire Services. Outside that job, he builds software and AI tools and writes about useful systems. This site is a personal archive of that work, not a consulting practice. Claims about adoption, revenue, or safety outcomes appear only when they have been measured.

Selected projects

Useful things, made concrete.

Browse all 25 projects

Writing

Notes from the work.

Read the archive

Agent Memory Stack — SQLite + Mnemosyne

How a two-loop agent memory stack uses SQLite and Mnemosyne for durable, searchable, self-improving memory.

Read essay

Away from the workbench

Books, records, and ideas worth keeping.

Frequently asked

Questions about the work

Who is Juan Mackie?

Juan Mackie is a builder and writer based in Australia. He works full-time at Auscoast Fire Services and builds software and AI tools outside that job.

What does Juan work on?

Juan works full-time at Auscoast Fire Services. His independent projects include software, AI tools, and writing about operations and technology.

What is Prompt Paul?

Prompt Paul is a Chrome extension that lets you use AI on selected text and page content without leaving the tab. It also supports PDF text and compatible media. Web search and page actions are optional and depend on the connected provider.

What is the One at a Time podcast?

One at a Time is a podcast hosted by Juan Mackie. Each episode focuses on one idea. Topics include technology, business, and investing. It is available on Spotify, Apple Podcasts, Overcast, and other platforms.

What projects has Juan Mackie built?

The public archive lists Prompt Paul, finalcut.ai, Last P, pi-Dream-RSI, pi-deepseek-peak, the portable LLM USB key, Hermes Blink, juanskills, Skills Greenskeeper, ccswap, Logseq Housekeeper, WhatsApp Desktop Webapp, utilviewer, Vectra, Marching Waves, the Ecovacs GOAT G1 beacon planner, and Free LLM Tracker. It lists mnemosyne-hermes and AllYouNeedIsWheel_moomoo as maintained forks. Entries link to public repositories or product pages.

How can I contact Juan Mackie?

Email Juan at juan.mackie@gmail.com. He welcomes questions about the projects, product feedback, and useful introductions.

Is juanmackie.com a consulting practice?

No. Juan works full-time at Auscoast Fire Services. He builds the projects on this site independently. The site does not offer consulting.

Is this site affiliated with Auscoast Fire Services?

No. Juan works full-time at Auscoast Fire Services. This site covers his separate projects and writing. Auscoast is his employer, not a client or sponsor of the projects listed here.

How are the projects evidenced?

The project archive links to a public repository or live page where available. Case files list a status and review date. A repository shows the code is public, not how many people use it.

Do you accept sponsored placements or paid links?

No. The Links page lists referral services Juan has used. It does not sell placements.