👋 Hey, I'm Marcel – aka geckse
Developer since I was 12. Surviving the post-AI-coding era - just kidding, I actually feel more enabled than ever. My focus these days is on automation, AI workflows, and building open-source essentials that the community actually needs.
Based in Berlin. Series SaaS Founder, n8n Expert & Ambassador. I've been shipping things on the internet for a long time — apps, websites, IoT nonsense, and increasingly: tools that let AI and Automations do the heavy lifting.

🔧 What I ship

Current biggest OSS Project: 📚mdvdb
Markdown Vector Database
A filesystem-native vector database built around Markdown files — zero infrastructure, everything on disk. Three search modes out of the box (hybrid, semantic, lexical) designed for AI agents that need fast, flexible search over local knowledge bases and persistent memory.
→ github.com/geckse/mdvdb

Most of my open-source work lives in the n8n ecosystem, filling gaps nobody else bothered with:
n8n-nodes-ninox — Full CRUD integration for the Ninox database platform, including a trigger node with smart sequence-based change detection
n8n-nodes-gpt-tokenizer — Token counting for GPT models inside n8n workflows
n8n-nodes-exif-data — Read & write EXIF/IPTC/XMP metadata from images, powered by a vendored Exiftool
n8n-nodes-text-extract — Regex-based text extraction as a proper n8n node
n8n-nodes-einvoice — Parse ZUGFeRD / XRechnung / Factur-X e-invoices straight from PDFs

🏆 Community Recognition
Won 1st place in n8n's AI LangChain Contest (2023, yes. that long into GenAI) for a workflow that personalized customer responses and auto-generated email templates with AI visuals.
2x n8n Community Award Winner - for my work as @n8n Ambassador.

🌱 Side quests
Running a small-scale IoT-automated hydroponic farm (there are repos).

💚 Why sponsor?
I want to build more open-source AI essentials, things we need in the Agentic space. Foundational tools for the automation and AI community. Your support keeps that going. Or might actually start it. ;)