Prague. Fractional CIO/CTO and enterprise architect.
I work across enterprise architecture, healthcare AI, and EU compliance (AI Act, GDPR). On the side I build local-first, self-hosted tools. Most of what is here started as a problem on my own machine.
Worth a look
- claude-fix: run multiple Claude Desktop accounts on one Mac. Isolated work, personal, and client profiles via separate launcher apps. No dependencies, never modifies Claude.app.
- vg-stc2000-macos: an abandoned Samsung TV camera used as a UVC webcam and microphone on macOS. Firmware loader ported from the Linux original by ondrej-zary.
- unknownpassword-zero-trust-architecture: zero-trust architecture and client-side Web Crypto on Cloudflare Workers.
Author: Sergej "Sergio" Fedorovic, linkedin.com/in/cto-mentor-architect
Elsewhere

