Web platforms & publishing
The open directory of German wineries — online since 1998.
openwein.de went online in 1998, making it one of the oldest wine portals on the German-speaking web. In 2026 I rebuilt it on a new codebase (Laravel 13, PHP 8.4): 13 wine regions, about 660 wine towns and some 5,900 wineries, each with address, opening hours and visitor comments.
The wine-festival calendar drives growth: every festival page lists the town’s wineries, and wineries’ appearances elsewhere show up as “Unterwegs”. New are a map of wine vending machines and a “sky over …” box with sunset and a biodynamic calendar, fed by Morgenhimmel.
A public MCP server (list_regions, search_wineries, search_towns, list_events) lets AI assistants query the directory — ebersheim.de uses it for its own wine pages.
Daily horoscope and night sky — the sky is computed, not invented.
Website, podcast and social formats about the sky: every planetary position is computed with ephem, the interpretations come from hand-written text blocks. Plus an interactive star map and skyandsigns.com as the localised English and Spanish edition.
Crossword solver, puzzle builder and daily puzzles.
Type the clue, pick the length, done: over 500,000 solutions sorted by letter count. A local language model continuously grades the clue–answer pairs. Plus a curated puzzle collection and three new crosswords every day at three difficulty levels.
Blood-alcohol calculator with an honest range — and an MCP endpoint.
Calculates with the Widmark and Watson formulas and shows a range instead of false precision, plus the time when you are back under 0.5 or 0.0 per mille. One PHP core serves the page, the no-JS fallback and the MCP; tests check that JS and PHP agree.