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arn0ld87/README.md
Alexander Schneider — System Integration · Linux, Networking, DevOps, Security

Selected Systems — repositories worth a second look

Engineer ID — Alexander Schneider, Infrastructure Access
System Focus Stack
homelab Infrastruktur-Specs und Runbooks, bevor auf den Maschinen etwas passiert Markdown HTML Tailscale Prometheus
agora Self-hosted GraphRAG-Pipeline mit Persona-Agenten, ohne Cloud-API Python Neo4j Ollama Vue 3 Docker
harness-qwen Lokales Agent-Harness mit deterministischer Tool-Absicherung Python Local LLM
Chappe Signal-Backups durchsuchbar machen — offline, ohne Abhängigkeiten Python SQLite FTS5
skills-public-archive Öffentliches Archiv lokaler Agent-Skills mit Ordner- und ZIP-Export Python Automation
alexle135.de Portfolio- und Blogplattform hinter alexle135.de, SSR auf eigenem Server TypeScript Astro Node 22

Kuratiert nach Infrastruktur, Automatisierung und Selfhosting — nicht nach Sternen. Alle weiteren Repositories: github.com/arn0ld87?tab=repositories

Toolchain — what actually runs on the machines I maintain

INFRASTRUCTURE

Linux, Ubuntu, Debian, Docker, Cloudflare, Raspberry Pi

Proxmox LXC Tailscale Self-Hosting VPS


NETWORKING

TCP/IP VLAN Routing DNS DHCP VPN Firewalls


AUTOMATION & DEVOPS

Git, GitHub, GitHub Actions, Bash, Python, VS Code

CI/CD Docker Compose Runbooks Shell Scripting


WEB & SERVICES

Nginx, Node.js, PHP, PostgreSQL, TypeScript, Astro

Apache Reverse Proxy TLS


AI / EXPERIMENTAL

Ollama Neo4j Local LLMs MCP AI Agents GraphRAG


Engineering Principles — the rules that survive every refactor

01 Automate repetitive work · 02 Prefer reproducible infrastructure · 03 Harden before exposing · 04 Observe before guessing · 05 CLI first, GUI when useful · 06 Backups are real after restore testing


Current Operations — what has my attention right now

Linux Hardening, CI/CD, Container Best Practices, Network Engineering, Secure API Integration, AI Infrastructure, Automation


Telemetry — activity, languages and contribution stream

Profil-Kennzahlen von arn0ld87: Stars, Commits, Pull Requests, Issues



Repositories pro Sprache Sprachen nach Commit-Anteil



Commit-Streak von arn0ld87



Verteilung der Commits über den Tag



ENGINEERING METRICS

Anzahl öffentlicher Repositories Follower Profilaufrufe



Die Schlange frisst den Contribution-Graph

Establish Connection — website, repositories, profile

Website alex-schneider.dev Blog alexle135.de GitHub-Profil arn0ld87 Alle Repositories



Leipzig, DE  ·  Fachinformatiker für Systemintegration  ·  offen für Infrastructure- und DevOps-Themen


BUILD // HARDEN // AUTOMATE

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  1. agora agora Public

    Self-hosted GraphRAG + multi-agent social-media simulator. Upload a doc → build a knowledge graph → spawn persona-driven agents → generate a report. Ollama & Neo4j instead of Cloud-APIs. DACH-first…

    Python 3