Projects

What I built, what I was responsible for and the reasoning behind my technical decisions.

Ordering for hospitals: a web shop and an operating-room scanning app

For a purchasing cooperative in healthcare, a backend developer and I built two products: a web shop for hospital purchasing and an app that lets nurses scan and order directly in the operating room. Frontend, mobile app, database and cloud infrastructure were mine.

My scope: web · mobile · database · infrastructure

Read the case study

Illustrative workflow: a phone recognises Demo-Artikel 001 from a barcode; a web ordering list beside it shows two sample items. The example interface is in German. — Workflow illustration · synthetic data. Independently designed example interface; not a customer screen.

Selected work

Illuminate

Native macOS app

Extra brightness for XDR displays. Native Swift, AppKit and Metal – finished and in my daily use.

The default overlay disappears with the app. No modified system state is left behind.

$ git commit --no-verify

Blocked

Checks must not be bypassed.

guard → review → commit

Simplified guard example

agentic-workflow

Open source · Claude Code plugin

My rules for coding agents as a plugin. A guard hook blocks bypassed checks and asks before sensitive changes.

A guardrail, not a sandbox. Every diff still needs my review.

How I work

The workflow page covers a real review case, my development process and the rules I use for coding agents.

How I work Get in touch