I explore business and AI by building things I use.

I'm Luka van Maren, a student learning how to turn useful ideas into working products. This is a place to show the work, the decisions, and what I still haven't figured out.

Explore Health OS
Health OS / a daily loopillustrative diagram
01Log a mealFood and nutrition
02Record trainingSets and sessions
03See the dayContext in one place
One private tool instead of disconnected routines.
A schematic of the problem, not an app screenshot or a public demo.

The point isn't to look like a founder.

I'm interested in what AI lets a small team—or one person—actually make. The test is whether a tool survives ordinary use, not whether it sounds impressive in a launch post. I'll document what I build, what I check, and what changes my mind.

A little more about me