About
Dutch entrepreneur working from Amsterdam. I build software, run ventures, and write about what I learn along the way.
TL;DR
Two company exits before turning 30. Now Partner and Chief Product Officer at Ryde Ventures, an AI venture studio. Shipping Stagent (booking and management software for the music industry), TAP (one profile an artist keeps, that every platform reads) and Steddle (the claimant side of class actions, run as a service). Former DJ (house as Mischaa, tech house as Ned Erland, harder-styles as Break of Dawn). Recovering perfectionist. Writing about what works and what didn't.
The longer version
Everything started with music. As a teenager I was DJing house as Mischaa and tech house as Ned Erland, and somewhere between buying records and playing sets I taught myself to build websites. The first one was for a DJ friend who needed something better than what the platforms gave him for free. I built it in WordPress over a weekend. It looked professional. Other DJs saw it and wanted the same thing.
That became Pixelstart, a web design agency in Haarlem building WooCommerce sites for creators. YouTubers, DJs, artists selling merchandise. The client list grew to include names like Headhunterz, Enzo Knol, and StukTV. At its peak I was managing over 100 websites and pulling in $10k in monthly recurring revenue. All of it run by one person, which was both the accomplishment and the problem. I was building a job, not a business. I sold it in 2021.
Before Pixelstart, between 2012 and 2016, I ran VOID Agency, a booking agency for DJs. That's where I learned the music industry from the inside: the spreadsheets, the contracts in Word, the invoicing tools that didn't understand German withholding tax. I kept a mental list of everything the industry needed and nobody had built. That list eventually became Stagent.
Stagent started as a side project. Lennert, who I'd known since I was nineteen and who I now work with at Ryde, wrote the first check without asking for a term sheet. The product grew from a prototype into a platform used by booking agencies across the globe. Along the way I co-founded True Identity, a booking agency and label in the harder-styles scene, partly to dogfood Stagent with a real operation. True Identity grew past what I could run on the side, and I sold it in late 2024 to an operator who could give it full-time attention.
In 2023 I announced a joint venture between Stagent and Artwin, the market leader in Dutch booking software. The plan was ambitious. It didn't work out. Two solopreneurs on one ship, different working styles, different continents. I learned more from that year than from most things that went right. Stagent found its next chapter at Ryde Ventures, and that's where it lives now.
Ryde is the venture studio I joined in December 2025, alongside Lennert and Marta, two people I've worked with for over a decade. The first product out of Ryde is Onoma. It launched as an AI memory layer across every provider, and it grew into something bigger: the company brain. Emails, documents, contracts and meeting notes go in, and what comes out is an organized space where a team and its AI both know where things stand. Same thesis underneath, that your context is the moat, not the model.
Two more came out of 2026. TAP, The Artist Passport, is one profile an artist and their team keep, that every connected platform reads. It started as Stagent's press kit and outgrew it. Steddle runs the claimant side of class actions as a service, for funders, counsel and claim foundations. It grew out of the claim I started as a Tesla owner whose car never got the software I paid for.
Two Steddle products came out of that work and are open to anyone. Bron shows what a Dutch law said on any given day, with the official document and a checksum behind it, through a website, an API and an MCP server. Send NDA sends an NDA both sides sign online, with a log anyone can verify. I built both.
Not everything sticks. Tiller was managed hosting for personal AI agents, the thing I was building when I tested the Ralph loop. 382 commits in a month, then I stopped. The interesting part turned out to be the agent workflow, not the hosting around it.
The building
I write code in Laravel and PHP. I'm not a framework expert, I'm a professional Googler who learned by reading docs and asking AI for help. Most of what I build is vertical software: products that encode the conventions of a specific industry so precisely that nobody has to think about them. Nightshift, the feature that knows a 2 AM set is Friday's gig, is the purest example of what I care about in product building.
I maintain a handful of open-source projects. Laravel TOON encodes data for LLMs in roughly half the tokens of JSON. The rest are Claude Code plugins, all in one marketplace: Library makes every past chat and session searchable, Parley lets one project ask another what it knows, Personas turns documented experts like Taylor Otwell into advisors with memory, and Ralph runs the autonomous loop that builds while I'm doing something else.
The writing
This blog is where I think out loud. Product frameworks, AI tooling, developer workflows, and the occasional honest accounting of what went wrong. I write for builders and founders who are one or two cycles behind me. Not for readers who want to be impressed. For readers who want to go do the thing after closing the tab.
Opinions, not hedging. If I'm uncertain, I say so plainly. If I'm wrong, I update the post.
The rest
I'm a dad to Mason, who's five* and already better at asking obvious questions than most product teams I've worked with. I work out 4 to 6 days a week on a Push, Pull, Legs split. I have an accountability partner who checks in every morning at 10 AM. I'm a recovering perfectionist. I still catch myself spending too long on things that don't need it.
Break of Dawn came later, a harder-styles act I started when True Identity needed its first artist on the roster. I don't play anymore, but the music industry is still where most of my software lives. The people I build for are the people I used to be.
* Yes, that number updates itself on his birthday. He turns six on July 30th.
Read my thoughts, grab The 5-Project Rule for free, or get in touch via X and GitHub.