Freelance Developer based in Munich, Germany. Building AI prototypes and automations with LLMs, n8n, and Node.js. Open source enthusiast. Two projects funded by the German Federal Ministry of Education and Research (BMBF).
25+ years at the intersection of language and technology — from Voice Interfaces and Alexa to Large Language Models and AI Automation.
→ LinkedIn · Blog · Homepage · YouTube · APL Ninja
| Skill | Description | Store |
|---|---|---|
| Schlauberger | Natural language interface for GPT on Alexa | 🇩🇪 |
| Mein Dashboard | Widget-style dashboard for Echo Show devices | 🇩🇪 🇺🇸 🇬🇧 |
| ToolBox | Command line interface for Alexa Skill developers | 🇩🇪 🇺🇸 🇬🇧 |
| Universallexikon | Context-aware Wikipedia skill with intelligent keyword matching | 🇩🇪 🇺🇸 🇬🇧 |
| Kurznachricht | Voice-to-email: speak a message, get it as email | 🇩🇪 |
| Commander Speedo | Voice-controlled shoot-em-up arcade game on Echo Show | 🇩🇪 🇺🇸 🇬🇧 |
| APL Doctor | Device-specific viewport diagnostics for APL developers | 🇩🇪 🇺🇸 🇬🇧 |
| Cinema Space | Browse and watch NASA video archive by voice | 🇺🇸 🇬🇧 |
| R2D2 | Astromech translator for fun | 🇩🇪 🇺🇸 🇬🇧 |
→ Full list of all published Alexa Skills on amazon.de
| Tool | Description | Links |
|---|---|---|
| Voice Model Expression Language | Expression language for compact Alexa voice model notation | Web App · LinkedIn Article |
| Magic Prototyper | Jovo V4 build hook for rapid voice app prototyping | GitHub |
| Magic Model | Jovo V4 build hook — Spintax & Jexl support for voice models | GitHub |
| Model Linter | Jovo V4 build hook — linting for voice model files | GitHub |
| Spintax Plugin | Jovo V4 output plugin for natural-sounding dialogue variation | npm · GitHub |
| Jexl Plugin | Jovo V4 output plugin for expression language in responses | npm · GitHub |
| APL Grid Generator | Generate APL container grid layouts | Web App |
| JSON Formatter | Online JSON pretty printer | Web App |
| Spintax Exploder | Expand Spintax expressions to all permutations | Web App |
| Publication | Topic | Link |
|---|---|---|
| Süddeutsche Zeitung | Private Prompts — Datenschutz bei KI-Nutzung | Artikel |
| PC Welt | Private Prompts: Nutzen Sie KI-Tools ohne Preisgabe Ihrer Daten | Artikel |
| PC Welt | Private Daten vor KI-Nutzung schützen – so geht's | Artikel |
| golem.de | Datenschutz vs. KI: Private Prompts schützt vertrauliche Daten | Artikel |
| Zahnärztliche Mitteilungen (zm) | Private Prompts | PDF (S. 73) |
| Arbeitsgemeinschaft Diabetologie Baden-Würtemberg e.V. (ADBW) | So schützen Sie persönliche Daten bei der Erstellung von Prompts | Artikel |
| s3nnet.de | About: Private Prompts | Artikel |
| Smarthome Assistant | Widget-Alternative für Echo Show: Alexa Skill "Mein Dashboard" | Artikel |
- 🏛️ Civic Coding ‒ Innovationsnetz KI für das Gemeinwohl“Private Prompts 2.0 (2025/2026)
- 🏛️ BMBF / Prototype Fund — Private Prompts (2024–2025)
- 🏛️ BMBF / Prototype Fund — Voice-QL (2022–2023)
- 🥈 2nd Place — Telekom Hackathon "Remote Rhapsody" with "Virtual Help Desk" (2020)
- 👑 Jovo Community Member of the Month (×2)
- 📝 Contributor to APL Ninja — Alexa Presentation Language resources
