Independent product builder
Hi, I’m Wilbert.
I build useful software with care and share the decisions, lessons, and stories I pick up along the way.
Founder / Builder / CraftsmanRecent blog posts
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How I Designed My Personal Site Using Codex CLI
Codex doesn’t really have the best reputation when it comes to design.
How I’ll Choose the Next Startup Idea
Have you spent weeks or months seeking a startup idea?
Pivoting My Startup Journey
Hi, I’m Wilbert – a solo bootstrapped founder. I launched multiple products last year, and the recent one is still receiving new signups now and then.
Products I’ve built
current2026
Rinhelp
Investigates technical support issues and drafts an evidence-backed diagnosis for review.
Founder
sold2024
Browserhub
Easy to use no-code web scraping and data extraction tool.
Founder
sold2024
Feedbackpaw
Free feedback portal for SaaS.
Founder
sold2023
Mumu
Fast emoji picker for macOS.
Founder
Interviews & highlights
Micro SaaS HQ, 2023
Mumu Acquisition Highlights
A graceful note on Mumu's 5-figure acquisition.
Indie Hackers, 2023Indie Hackers AMA
Give back to the community by passing on the lessons I’ve picked up along the way.
Starter Story, 2020The Backstory of Mumu
On developing a better emoji picker for Mac and getting featured on Product Hunt.