I also build for others.
Six AI tools of my own and a production website for Adeline Fotografie. Built to understand the technology from the inside, and now also available on commission: tools, workflows, websites or other automation.
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Johan
Plays out the 2026 World Cup ten thousand times with a Monte Carlo model. Title odds for all 48 countries, a complete group-stage bracket and a comparison with the bookmakers. A demo, not betting advice.
LiveCrassus
Weekly stock selection for the US and EU markets. A quant engine scores candidates on six factors and delivers a newsletter every Saturday with picks, scoreboard and commentary.
LivePythagoras
A set of timeless calculators: compound interest, annuity, freelance rate, billable days and more. Ready to use, with charts and overviews. Free, no account needed.
LiveAuto Archiver
Python script on a Synology NAS that automatically sorts business documents, adds a date prefix and forwards invoices straight to the accountant. Runs in production in my own company.
LiveRegPilot
Compliance check based on 50+ preconfigured Dutch laws and guidelines. Using the Chamber of Commerce number and SBI code, the tool maps which rules apply to a company; AI additionally checks whether more is in scope.
DemoMachiavelli
Financial management tool for freelancers and small companies. Reads bank statements, broker statements and crypto balances and allocates the balance through a waterfall allocation.
DemoAdeline Fotografie
From a simple portfolio to a findable website that brings in assignments. Design, custom WordPress, SEO and indexing. The whole project, built myself.
Delivered
Live: online and in use. Demo: mature enough to show the logic. Delivered: production website for a client.
Why build
From lab to commission.
The work I do for clients is about guiding, structuring and streamlining what others build. At the same time, AI is at a stage where you only really understand it once you get your hands dirty. Not talking around it, but working through it.
That's why, in my spare time, I build tools I'd want to use myself. For my investment decisions, my cash flow, my admin, my compliance questions. Auto Archiver runs in production in my own company. Crassus delivers weekly picks to a handful of readers. Pythagoras is a free set of calculators for your daily number-crunching. And Johan runs the World Cup, live and working. Those four are online and doing their job. RegPilot and Machiavelli are at demo stage, but mature enough to show the logic.
The lessons learned flow back into my assignments. Anyone who builds AI themselves understands better what it can and can't do. That's my edge over fellow consultants who only read about it.
I now also build for others: tools, workflows, websites or other automation. The website for Adeline Fotografie was the first commission. If you have something that needs building, tell me what it should do and for whom.
Contact
Want something built?
Tell me what it should do and for whom. I respond within 24 hours.