# Henning Halfpap — Systems Engineer × AI

> Systems Engineer with 30+ years in business-critical IT infrastructure, now
> working at the intersection of production infrastructure and agentic AI. Based
> in Bad Vilbel, Germany. This profile answers "What have you built?" with links,
> not claims.
>
> Slogan: Made with AI. Made for humans and agents alike.

## About

A red thread, not a straight line: naval communications officer (German Navy) →
Java/J2EE development → Unix administration (DAB bank) → Solaris, ZFS and customer
training for Sun Microsystems → Lead Systems Engineer at FactSet (large migrations
CentOS 7 → AWS/Rocky 9, Redis clusters, 24/7 on-call) → a self-built "KI-OS"
(Claude Code, MCP servers, agent skills) that automates real work. Concept
page: https://ki-arbeitspartner.halfpap.io

Recurring motifs: deep operational discipline, cross-layer systems thinking
(hardware → OS → network → application → operations), and knowledge transfer.

## What I built

- **adsb-console** — https://github.com/McCavity/adsb-console
  ATC console for a 7-inch touch panel on a home ADS-B receiver (dump1090-fa);
  radar with airfield layer, range polar, altitude profile.
- **alarm-button-firmware** — https://github.com/McCavity/alarm-button-firmware
  ESP32-S3 firmware for a physical status & acknowledge button.
- **claude-marketplace** — https://github.com/McCavity/claude-marketplace
  Personal Claude Code / Codex plugin marketplace (agent skills + MCP servers).
- **jeelink-davis** — https://github.com/McCavity/jeelink-davis
  Receiving and processing chain for a Davis weather station via a JeeLink USB
  receiver; radio to dashboard, including a lightning sensor.
- **halfpap.io** — https://github.com/McCavity/halfpap.io
  This site: static, accessible, agent-native (llms.txt + JSON-LD) — the live proof.

More on the GitHub profile: https://github.com/McCavity

## In the workshop (not public yet)

- **macList** — https://maclist.halfpap.io
  Radio playout & live assist, native on the Mac — an homage to mAirList, openly
  vibecoded with Claude Code. Private repo, honest early stage; the page shows
  screenshots as proof of existence.
- **KI-Arbeitspartner** — https://ki-arbeitspartner.halfpap.io
  An AI working partner backed by a self-built "KI-Betriebssystem" (AI operating
  system): structured knowledge, commands, memory, maintenance, MCP integration.
  Concept page; the repository stays private, the page is the proof of existence.

## Services

Open to roles & projects at the intersection of production infrastructure and
AI-driven automation.

## Contact

- Email: henning@halfpap.io
- LinkedIn: https://www.linkedin.com/in/henninghalfpap/
- Xing: https://www.xing.com/profile/Henning_Halfpap/
- GitHub: https://github.com/McCavity