The username oohaa combines O from Ola, the middle initial O, and haa from Haarstad, spelling å as aa.
My background is in informatics, philosophy, and history. I make apps for everyday use and develop Mantinomia, my lifelong project to make knowledge from the past more accessible.
I study at NTNU and work part-time as an engineer at Maritime Robotics. The projects here are my own.
Projects
The questions and goals behind my projects.
MantinomiaPHILOSOPHICAL TEXTSMantinomia
A carefully prepared library that makes openly available texts easier to find, read, understand, and cite.
Open texts · Accessible reading · Interactive references
A judged copySketchy
Practising the skill of saying it with a sketch.
Visual communication · Drawing · Game-based learning

dagstack
Exploring the difference between keeping track of tasks and choosing what to do today.
Daily choices · Personal plans · Shared responsibility

mempit
A personal collection for saving material before deciding how to organize it.
Personal material · Capture · Local ownership

dagdash
Making cash in and cash out simple enough to plan a month and check in regularly.
Cash in & cash out · Everyday limits · Complete check-ins · Shared economy
Racing on real streetsLocus Race
A race between real places in Trondheim, to get to know the city while playing.
Kart racing · Trondheim · Learning the city
Background
I’m completing a master’s in informatics at NTNU, with expected graduation in summer 2027.
My previous degrees are in informatics, philosophy, and history. Alongside my studies and engineering work, I develop software for iOS, the web, and macOS.
Mantinomia is the project I intend to keep working on throughout my life. It draws on ideas I have collected for about ten years, with the aim of making freely available texts easier to read and use for generations to come. My other apps address more immediate, everyday needs.
Daily choices
Planning · shared responsibilities · personal material
Knowledge & continuity
Access to texts · reading · a resource for future generations
Places & navigation
Route decisions · real geography · exploring learning through play
Education
- MSc Informatics
- NTNU · In progress, expected summer 2027
- Master’s in Philosophy
- NTNU
- Bachelor’s in Informatics
- Kristiania University College
- Bachelor’s in History
- University of Oslo
- Bachelor’s in Philosophy
- University of Oslo
Contact
oohaarstad@gmail.comFor app questions and bug reports, see support & feedback.