Berend van Dijk,
Who does the building.

Client project · Dec 2025 – present

Website for an independent mortgage adviser, with calculators, e‑books and a learning section that lead visitors to a free introductory call.

• Four calculators, from Dutch wealth tax (box 3) to asset growth, that hand over the result as a PDF. After a download the follow-up emails go out on their own; the adviser edits the copy in the CMS.
• Regional pages with figures from Statistics Netherlands (CBS). If CBS is down, only that block disappears; the page and the build stay up.
• When the client's CRM took over invoicing, I removed our own payment integration again: over 8,000 fewer lines to maintain.

Client project · Jul 2026

Website for an entrepreneur who acquires profitable Dutch SMEs facing a succession question. From first meeting to launch within a week.

• A spinning 3D globe that never renders on the server, does not load under the ‘reduce motion’ setting and pauses as soon as it is off-screen.
• The contact form only reports success once the email has actually been accepted, and files the inquiry in the CRM as a contact with a follow-up task at the same time.

Client project · Sep 2026

Website for a made-to-measure clothing service, with calculators for cost per wear and wardrobe budget. Second project for the same client as MDV Capital.

• One inquiry form where each part lands in the CRM as its own record: contact, deal with budget, call-back task and note. A test fails if any part has no destination.
• All 34 pages static; layout shift measured and brought down to virtually zero, and a font preload that gained nothing when measured was rolled back.

Own project · 2026

Site for Sony Mavica camera enthusiasts, with a database of 38 models to compare side by side. Small community; technically my largest backend project.

• Python backend with 89 tables, running as a container on Cloudflare in five roles: API, cron and three queue workers, including AI moderation of images and text.
• Every pull request gets its own database branch for the migrations. Since a migration silently dropped five indexes in production, a drift check runs as well.

Own label · 2025 – present

Bilingual web shop for signed, numbered prints of my own code-generated art, with a 3D gallery you walk through yourself and a lab with 14 image tools.

• The gallery runs on my own 3D engine in plain CSS, without a 3D library: wall collision, mouse-and-keyboard controls, and drawing only what is in view.
• Stripe payments where the webhook processes each payment exactly once, updates the edition count and emails the invoice as a PDF.

Own company · 2025 – present

Bilingual site of my web and AI automation business, with a price estimator, a blog and an AI glossary of 171 terms with sources.

• Price estimator where visitors put together what they need and see roughly what it costs, derived from the package prices.
• Own A/B testing setup: the server assigns variants and only pages with a running test set a cookie, so the rest of the site stays static.

Own project · 2026

First-person photography game in the browser. You photograph hidden creatures with recreated Sony Mavica cameras; the model decides the zoom, the viewfinder and how many photos fit on the floppy. Ten areas, co-op for two to four players.

• Started on my own 3D engine in CSS. Measurements showed that 84% of the frame time was spent in the browser itself, not in the game; so I moved to Three.js, with 88% of the code carried over unchanged.

Own project · Sep 2026

A classic maze game with shifting corridors in the browser, in seven variants: against the computer, two players on one device or against others via the server, with ratings, tournaments and a daily puzzle.

• A public agent arena: Claude and GPT models play each other through the API, with an Elo leaderboard and the notes each agent made on its moves.
• One rules engine with no dependencies and randomness only through a seed, shared by the server, the computer opponents and the agents, which play without a browser.