Bud
A habit tracker built on game mechanics, local-first so it works with no account and no network.
“I build the thing, then I ship it.”
That is the whole method. Prototypes are cheap and plentiful. What is rare is a system that survives contact with real data, real users and real failure modes, which is why this one is built around gates that fail loudly rather than dashboards that look reassuring.
Fourteen invariants sit in the codebase and break the build when a known defect returns. Every figure on this site is regenerated from the pipeline and labelled with the kind of evidence behind it. Where a number has not been earned, the site says so. That posture is not modesty. It is what makes the numbers that are claimed worth anything.
Background
Eighteen months in US fintech, rebuilding monolithic systems into event-driven services carrying more than 500 concurrent users, moving from data engineer to lead developer over that stretch. The habits on this site come from there: idempotent decisions, logged propensities, and the assumption that anything unlogged did not happen.
Currently reading for an M.Sc. in Big Data and Business Analytics at FOM Hochschule, alongside peer-reviewed research on rainfall estimation through data fusion, published in IRJMETS in March 2025.
- Role
- Founder and AI engineer
- Focus
- AI and LLM products, full-stack engineering, data engineering, event-driven architecture
- Based
- Germany and India
- Study
- M.Sc. Big Data and Business Analytics, FOM Hochschule, through August 2027
- Research
- Rainfall estimation via data fusion, IRJMETS, March 2025
- Open to
- Data, software and AI engineering roles
Other things that are live
Each of these is running, not a screenshot in a deck.
Cartwise
Turns a photographed receipt into a nutrition summary using OCR and product matching.
FirstChair
Monitors how law firms are represented by AI assistants across ChatGPT, Gemini and Perplexity.
Knock
A local services booking platform, built to handle concurrent users competing for the same slot without double-booking it.
Why this one is called Ganymede
Ganymede is the largest moon in the solar system and the only one that generates its own magnetic field. Its surface is ancient cratered ground cut across by long parallel grooves, formed where the crust pulled apart under strain.
That is a reasonable picture of a credit book. Most of it is quiet and unchanging. The interesting part is where the surface starts to pull apart, and the whole product exists to see that early enough to do something cheap about it.
The mark is the same idea reduced: a moon in phase, where the boundary between light and dark is not a clean arc but a bent trajectory.
Phases, left to right. An account passes through the same sequence, and the Risk Lens is built to catch the second one rather than the fourth.
Get in touch
Questions about the system, the evidence behind it, or working together.