Martin vanDeursen

Martin van DeursenFounder · Dutch Data Labs & The Witness Protocol

Prompt/Context/Design Engineer

mvd101

GitHub

Nether403

X

@StackStudio101

here.now

@nether101

F6S

martin-deursen1

Email

Martin@101dev.xyz

About

I'm Martin — an AI-assisted solo developer and founder based in Haarlem.

I build practical software with modern AI tooling: Cursor, rapid prototyping, and careful product design. This site is my development portfolio — the place for shipped code, tools, and startups.

Current focus:

Dutch Data Labs — a new startup exploring social and debate products (F-socials, AIdebate)
The Witness Protocol Foundation — research non-profit for transparent, high-signal AI testimony work
RepoGuardian — supervised GitHub fleet triage and maintenance

Research and design work live in separate portfolios (linked below). Past experience includes StackStudio (no longer active, kept as a portfolio piece).

Projects⁽⁷⁾

New startup building products at the intersection of social software and AI debate tooling.

Includes:

F-socials — social product surface
AIdebate (LLMargument) — structured LLM debate / argument experiments

https://dutchdatalabs.online/

Startup
Product
Social
LLM
TypeScript

Supervised GitHub repository triage and maintenance assistant (live alpha). Helps keep a multi-repo fleet healthy with structured review and upkeep workflows.

Repo intelligence & triage
Maintenance assistant for active fleets

https://RepoGuardian.101dev.xyz
https://github.com/Nether403/RepoGuardian

GitHub
Fleet triage
TypeScript
Next.js
Maintenance

Local-first AI sprite & game asset workbench — text prompts (and optional reference images) become reusable animation clips and versioned engine-ready bundles.

FastAPI + deterministic image pipeline (repair, palettes, sprite-sheet packing, Godot resources)
React/Vite client with Azure GPT Image, Gemini/Vertex, or loopback ComfyUI backends
Bundled local MCP server and agent skills for game-dev workflows

https://github.com/Nether403/SpriteGameGen