Web & Platforms
Websites, landing pages, and portals — static or dynamic, fast and maintainable.
Hugo · Astro · Tailwind · Netlify · Cloud Run
Web · Data · AI · Operations
Digital services, built and run.
I build and operate websites, data pipelines, and AI applications — from the first line of code to a running system in the cloud.
Strategy & advisory: andreasrieger.com
I have worked at the intersection of marketing, data, and IT for over 25 years. Rieger.Digital is the delivery side of that work: concrete digital products and services that I design, build, and keep running myself.
No framework zoo, no buzzwords — proven technology, cleanly deployed, and measurable from day one.
Services
Data & Analytics
Tracking and server-side tagging, Search Console and BigQuery pipelines, reporting you can rely on.
GTM server-side · BigQuery · Python · SQLite
AI & Automation
LLM applications, retrieval-augmented generation, on-prem agents, and workflow automation.
Ollama · Qdrant · LangChain · OpenAI-compatible APIs
Operations & Cloud
Deployment, APIs, and monitoring — the solution doesn't just run locally, it runs in production.
Google Cloud Run · GCP · Netlify · Docker
Selected work
Own projects that show the range — each taken from concept through development to a running system.
a11yscore
Accessibility as a measurable value
A scanner that checks any URL against WCAG 2.1 AA — as a REST API and as a conversational web app with a structured report of violations, warnings, and passed checks.
axe-core · Playwright · Cloud Run · Firestore · Next.js
EuroCAPTCHA
Bot protection without depending on US platforms
A proof-of-work CAPTCHA based on quadratic residues over a Woodall prime — fast to verify on the server, tunably expensive on the client. Plus a SaaS shop with Stripe subscriptions and API key management.
Node · Web Worker · Cloud Run · Laravel · Stripe
Server-side tagging
Tracking that holds up against the browser
Building a GTM server container against data loss from ad blockers, ITP, and short cookie lifetimes — alongside a German-language content site on the topic.
GTM server-side · Hugo · Tailwind · Netlify
Search Console analytics
SEO data beyond the UI limit
Pipelines that tap the Google Search Console bulk export in BigQuery and mirror it into SQLite — for keyword and URL analysis and cross-domain comparison.
Search Console bulk export · BigQuery · Python · SQLite
On-prem LLMs
AI that never leaves the building
RAG and SQL agents that run entirely on-premises — document search and natural-language database queries without a single external API call.
Ollama · Qdrant · LangChain · SQLite
Static-site platforms
Fast sites that machines can read too
Multilingual static websites with a build pipeline, plus Markdown mirrors and llms.txt for discoverability by AI systems.
Hugo · Astro · Tailwind · Netlify
Approach
Technology is a means, not an end.
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01
Small, shippable steps
Something usable early beats something perfect late.
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02
Standard tech over a framework zoo
Tools that are still maintainable in five years.
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03
Measurable from day one
Tracking, logs, and reports belong in the first version.
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04
Operations built in
Deployment, monitoring, and cost are part of the solution.