Portfolio

Selected Work

Client work and my own products. The interesting part is usually not what got built, but the decision that came before it.

Client work

Built for others, shown with their consent.

Client project

Sailvation

Back office and client guide for a yacht charter broker

A booking runs over months and forty to sixty emails. What came out of it is a system that keeps track of the deadlines, produces invoices at the push of a button and reports every morning what is due. Plus a fourteen-page client guide.

Process designGoogle SheetsApps ScriptContentGDPR

To the project

My own products

Built and run by me.

Web App

involy

Accounting tools for freelancers

Free browser tools for the self-employed in Germany. Create invoices and track income, expenses and VAT. No sign-up, all data stays local.

Next.jsLocal-FirstPDF ExportGDPR

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AI Tool

NaroAI

AI chatbot for Twitch streamers

Naro engages with the chat on its own, reacts to raids and subs and answers questions via live web search. The streamer controls everything by voice.

LLMLive Web SearchVoiceTwitch API

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Contact

Your project next?

Got an idea in mind? Get in touch, I reply personally.

Usually a reply the same day.