Apps & Projects
Free mental math trainer for primary school students – in eight European languages. Mental math made easy.
matheu.eu →Fretboard visualizer for the Castagnari Benny C/G. Chords, scales, and push/pull at a glance – no scrolling needed.
wdeu.github.io/benny-accordion →MusicXML to button tablature (D.E.S.) for the diatonic accordion – right above the sheet music, in the browser. 26 layouts, an open continuation of Bencetti's DiatonicTab. Local, no cloud.
wdeu.github.io/soufflet →Automatic book-cover gallery for Booklooker sellers. API queries, removal of sold copies, a finished website – in seconds. Reference: galerie.wdeu.de
github.com/wdeu/galerie-generator →Books from my collection – read or unread, from 1970 to today. Generated live with Galerie Generator and always up to date.
galerie.wdeu.de →Find used books and compare prices – across Amazon, Abebooks, Booklooker, and many other platforms at once.
wdeu.de/eurobuch →Suno · Music with AI
With Suno, I turn my own ideas into music using AI – from diatonic accordion to urban pop to children's songs.
All songs at suno.com/@wdeu →Raycast Extensions
Raycast is a launcher for macOS and Windows, a smart platform for scripts, and a toolkit for building your own app ideas: Glaze. My extensions grew out of everyday needs – as a book seller, former camper-van traveler, and book lover. Open source under the MIT license, in the Raycast Store.
Sync local projects to your IONOS server via rsync over SSH – with dry-run preview, push/pull, and project management. Directly from Raycast, no terminal needed.
raycast.com/wdeu → Raycast ExtensionEnter an ISBN, hit enter – the table of contents from the German National Library opens instantly. Optional: AI-generated blurb with search terms from Google Books and Wikipedia, with Open Library coming later. For all German-language books since 1913.
https://raycast.com/wdeu Raycast ExtensionTrack the true daily cost of your camper van – log expenses by year and category, record usage days, and calculate net depreciation after residual value. With CSV and JSON export. Directly in Raycast.
https://raycast.com/wdeu →Glaze · Native Mac Apps
With Glaze – Raycast's AI app builder – I build native Mac apps through chat. Small, focused, local: each one solves a specific everyday problem.
A minimalist sheet-music player for playing along: MusicXML from a local folder, a moving playback bar, tempo trainer, A/B loop, mute/solo. Local and private.
glaze.app → GlazeExtracts the key points from contracts in seconds – PDF, Word, text: critical clauses, deadlines, costs, unusual terms. Locally with Ollama or via Claude.
glaze.app → GlazeTurns a folder full of PDFs, Word, and Markdown files into a searchable knowledge base – in natural language, fully offline on the Mac.
glaze.app → GlazeTurns CSV files into interactive dashboards – charts, KPIs, and filters generated automatically, no manual setup. Export as PNG.
glaze.app → Glaze · BetaNever miss a subscription renewal or trial deadline again: track due dates, costs, and cycles, with due items shown as a menu-bar badge.
glaze.app → GlazeShows in real time which apps are accessing your microphone and camera – with a history log and alerts for unexpected access outside known meeting apps. A lightweight menu-bar monitor.
glaze.app → GlazeTurns cryptic screenshot names into clear, descriptive ones – using a local Ollama vision model and OCR, all on the Mac. With preview, undo, and auto mode.
glaze.app →About
Location
Bad Emstal,
North Hesse, Germany
Web apps, Python scripts, and Raycast extensions – built out of real everyday problems. Focused on simple, fast, and maintainable projects without unnecessary overhead.
On the side: buying and selling books, playing diatonic accordion, being on the road. Most of the tools here solve a problem I had myself.



