Open-source, self-hosted documentation for winter-service operators —
well-documented proof that a surface really was cleared and gritted. GPS
track, weather at the moment of service, photos and timestamps, exported as
PDF. Runs on any cheap shared hosting — no SSH, no Docker. German as
Schneespur, international as Wintertrace; one codebase.
GPS tracking via OwnTracks — no custom client needed
A self-hosted, API-first electronic-signature motor. Feed it a PDF and a
signer list; it runs the whole ceremony — email verification, consent, a
drawn signature, a tamper-evident audit trail — then seals the PDF
(PAdES-B-T), delivers it by signed webhook, and hard-deletes everything.
Built so you don't have to send your documents through a signing SaaS.
Sequential multi-signer · multiple signature fields per page
A self-hosted release & update server. One binary that hosts versioned
downloads, serves an update API, scans uploads for malware, and pushes
WordPress plugins to SVN with one click. Built so you don't have to rent
SaaS just to ship code.
Versioned releases with atomic latest-version routing
A full SEO and GEO (Generative Engine Optimisation) plugin that puts AI to work
without putting you behind a paywall. Generates meta descriptions using OpenAI,
Anthropic, Gemini or Grok. Manages your robots.txt for AI crawlers. Outputs
Schema.org JSON-LD. Serves an llms.txt endpoint. Runs on any WordPress site,
forever free.
AI meta descriptions — OpenAI, Anthropic (Claude), Google Gemini, xAI Grok
Turns n8n workflow exports into interactive, zoomable diagrams inside
WordPress posts and pages. Readers click nodes, explore parameters, zoom —
without leaving your site. GPL forever, no pro tier.
A project for truck drivers fighting Germany's parking shortage: shows
where free spots are, with drivers reporting free spots or status
("all full"). Community-driven — drivers manage their own secret spots,
optionally sharing them with others or publicly. Extensive, in active
development — a future flagship.
I vibe-code because it's fun — and this one is pure fun that got out of
hand. A live headstone that counts every token I've burned shipping things
with Claude Code: input, output, cache, the fallen projects, and the models
that reaped them. Built with Claude Code, naturally — so it keeps its own
body count.
A blog with a twist: its author, Mika Stern, is an AI persona —
a fictional 18-year-old maker from Passau documenting a home-built
amateur-rocketry and space project along the Danube. Behind Mika sits an
n8n engine that writes the daily articles, narrates them as a podcast,
generates the images, runs the forum, and remembers everything in a
MySQL long-term memory. Roughly 99% automated — and it shows its own
workings in the open. My longest-running AI experiment.
Mika Stern — an AI author with a MySQL long-term memory (89 tables)
n8n engine · 78 workflows · ~99% automated end to end
