I’m Marcel, an entrepreneur and builder from Stuttgart. I co-founded servrox solutions in 2021 and run our software consultancy. With stark AI, I’m focused on AI agents and harness engineering.

TypeScript is my default across the stack. My search for the right Web3 tools took me from IOTA to Aptos, still one of my favourite stacks, and to co-building Panana Predictions.

Previously: Web3 Topic Lead at Porsche and CIO at HAVN Labs, where we raised $1M pre-seed.

Reviewed workflows for Codex, Claude Code and Cursor, built from our daily engineering work.

Repository · Browse the catalog · ChatGPT plugin

• Jev Capability Advisor — Find suitable skills and MCP tools for the task.
• Architecture Compass — Hand-curated ADR guidance for architecture decisions.
• Codex Spec Interviewer — Turn fuzzy requirements into implementation-ready specs.
• CodeGraph + ast-grep — Explore code relationships and find structural patterns.

Also built: ConsoleFX · 1337 Turbo Starter

LinkedIn

_{Each star represents a public repository; its glow reflects its stargazers. Built with Galaxy Profile. The sky refreshes twice a day.}