Welcome to my blog!

How I built a LangGraph-based social media assistant that generates, queues, and publishes posts to Mastodon and Bluesky — with human approval and a monthly cost of under 50 cents.

Ostdeutsche Spediteure erleben einen erheblichen Kostendruck unter anderem durch niedrigere Lohnkosten in osteuropäischen Nachbarländern. Interessanterweise, sind die Kostenunterschiede im Bereich von 10% und der eigentliche Kostendruck kommt aus einer anderen Richtung.

The podcast argument against buying a home is strongest for young mobile professionals, but much weaker once you distinguish between different households and the very different risks they face.

A dinner conversation reveals why paying off your mortgage faster isn't always the safest strategy — and what actually protects your home when life goes wrong.

A hands-on guide to ETF diversification using risk budgets, with interactive tools to find your own allocation.

Technical summary of implementing multi-chain support for an NFT minting application. Notes on architecture, testing patterns, and lessons learned.

A simple model explains why budget negotiations might fail in democracies

I implemented the x402 payment standard for AI agents to autonomously pay for image generation services without accounts or sessions.

A bot network exploited a vulnerability in my GenImNFT contract, extracting over 80 cents. Here's how they did it, how I fixed it, and what the forensic analysis revealed about the bot network that seemingly extracts substantial sums.

When climate, water, and digital challenges cross borders but democracy doesn't, what's the alternative? This narrative essay compares confederation, federation, and cosmopolitan democracy through three fictional characters on a Barcelona-Tunis ferry.

I overhauled my site's SEO with Schema.org markup and replaced Giscus comments with Webmentions. The timing coincided with a surprising 200% traffic increase. Here's what I learned about making content discoverable.

Can blockchain solve quantum computing's access problem? I tested the architecture with AI NFTs—here's what worked, what didn't, and what's still unsolved.

I explore how smart contracts can democratize access to quantum computing resources, enabling privacy-preserving decentralized payments and encrypted NFT results.

I build an AI assistant that accepts Ethereum payments instead of subscriptions. Discover how Merkle batching enables efficient prepaid AI with instant responses.

I explore the fundamentals of Merkle trees for efficient LLM batching. Learn cryptographic proofs, batch verification, and AI service settlement optimization.

I explore solutions to the Tragedy of the Commons through interactive island simulations. See how governance models affect resource sustainability and community outcomes.

I explore the Prisoner's Dilemma through interactive game theory simulations. Discover strategic decision-making, Nash equilibrium, and how cooperation emerges in competition.

I create a privacy-focused AI image gallery where creators share work and collectors mint NFTs. Discover the technical details combining open-source generation with blockchain incentives.

I build an NFT gallery for AI-generated images using ERC-721 Enumerable contracts. Learn how to upgrade smart contracts and create integrated user experiences for collectibles.

I explore my website's evolution over 6 months, from minimal CSS to Panda CSS and Copilot refactoring. See how modern tools dramatically boost development productivity.

I implement anonymous micro-payments for AI image generation using Ethereum Layer-2. See how to connect blockchain payments with serverless AI for sustainable, privacy-focused services.

I explore the challenges of transitioning from quantum research to startup entrepreneurship. Valuable lessons about VC funding, deep tech development, and German startup realities.

I build a decentralized support button using smart contracts for direct content monetization. Learn how blockchain enables transparent micro-payments without platform intermediaries.

I build my own AI image generator using open-source models and European hosting. See how to integrate Stable Diffusion into static websites with full privacy and cost control.

I explore the future of interactive content with Python running directly in browsers. Tools like Pyodide and JupyterLite enable portable, installation-free data science.

I discover Mirror.xyz - a decentralized publishing platform combining Medium-like writing with Ethereum monetization. ENS domains and crypto wallets enable seamless creator support.

I explore decentralized web hosting using ENS domains and IPFS storage. Discover how blockchain enables censorship-resistant websites without traditional hosting companies.

I migrate academic lectures from LaTeX to modern web formats. Discover solutions for handling equations, references, and static site generation in JavaScript environments.

I share my journey from scattered notes to a unified blog using React and Vike. Modern web tech offers speed, simplicity, and full version control over traditional solutions.

I welcome you to my personal blog exploring technology, blockchain, and creative coding. Expect insights on modern web development, decentralized systems, and innovative digital experiences.