Small by design
No headcount goals, no growth theatre. A tiny team, senior by default, shipping products end to end — design, engineering, and operations.
Eigenstack · Sydney, Australia
A small studio.
A few good products.
Eigenstack is an independent software studio. We design, build and run consumer products end to end — currently, mostly Hakken.
Products
Built here.
New · web, with iOS & Android on the way
Hakken
Learning, built around you.
Hakken interviews you about what you want to learn — your goals, your level, your schedule — then generates a course tailored to you and adapts it as you go. Lessons, checkpoints and a voice interview that actually listens.
hakken.me ›Live
True Loan
The mortgage calculator that’s on your side.
An honest, intelligent Australian mortgage calculator. True repayment maths — no “13th payment” tricks — offset accounts, stamp duty for every state and territory, and an AI assistant grounded in your actual numbers.
trueloan.app ›Closed to new sign-ups · winding down
Liv
An AI chief of staff, on Telegram.
A persistent AI agent that acted on your behalf — managing calendars, triaging email, making bookings. Liv is being retired; much of what we learned building it went straight into Hakken.
liv4all.com ›The studio
Deliberately small.
Deliberately careful.
Products we use ourselves
Everything we ship starts as something we wanted to exist. If we wouldn’t keep it on our own home screen, it doesn’t ship.
Long-term by default
We run our products for years, not quarters — and when one has run its course, we wind it down properly rather than letting it rot.
Advisory
Available for the occasional good problem.
One client at a time, generally remote, generally a day or two each month. If your work overlaps with the topics on the right, get in touch.
hello@eigenstack.co ›- Engineering leadership
- AI adoption
- Agentic software
Writing