Cases and more

Welcome to my blog! My Name is Holger Hellinger. As a Director of Experience Engineering at Publicis Sapient, I bring over 20 years of expertise in leading dynamic teams and managing innovative web projects. This space is where I'll share case studies, code snippets, and insights into creating user-centric, accessible web experiences. Dive into my world of Agile project management, web design, SEO, and effective CMS scaling. Join me in exploring the intersection of technology and leadership, and how these elements combine to forge exceptional digital experiences.

Latest 4 Posts

1. The hidden cost of vibe coding and AI agents

   AI agents help us code fast. But "it works" is not the same as 'it is good'. We look at real risks for security, quality, and accessibility in 2026.

   11 May 2026 6 min read

   • AI
   • Engineering Leadership
   • Technical Debt

2. Prompting is not everything — Why the tool matters

   I tested Claude, Gemini, and Copilot with a "Zero-Shot" CV generator task. The results show that a good prompt needs a strong engine to work.

   6 May 2026 3 min read

   • AI Research
   • Frontend Development
   • LLM Comparison

3. The Agentic Design Workflow - Orchestrating MCP and AI for Scale

   Explore how MCP Apps, the Figma MCP Server, and Storybook MCP form a continuous design system flow, replacing manual handoffs with AI-driven orchestration that turns annotations and tokens into production-ready code without pixel-perfect mockups.

   16 Mar 2026 17 min read

   • MCP
   • MCP Apps
   • Design Systems

4. The DIDit Paradox – When Digital Sovereignty Burns the Planet

   As the open-source community celebrates Digital Independence Day, we must face a hard truth. Decentralizing from Big Tech often comes with a massive, hidden environmental cost.

   7 Feb 2026 3 min read

   • DigitalSovereignty
   • GreenIT
   • CloudComputing

30 more posts can be found in the archive.