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Johan Terpstra's avatar

Johan Terpstra

MarTech and eCommerce engineer, serial builder. By day it's email ops, SEO, analytics, WebPerf and customer data. By night I'm building Punditor, a live football room where you watch the match with both sets of fans, pick a side, and react as it happens. No algorithm, no pile-ons, just the crowd. Dutch, Heerenveen season ticket holder. Here to build in public and trade sharp, specific feedback.


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Products

  1. Punditor

    Post live football commentary with both sets of fans in one room. Pick a side, react as it happens, no algorithm. Launching around the 2026 World Cup, invite-only to start.

    Launching 2026 · invite-only

Recent activity

Jun 25, 2026commented on a post
Reworked my app after your liability feedback. Now deciding: keep going or move on — what would you do?
Jun 25, 2026commented on a post
Our AppSumo deal fell through, so I built v1 instead of waiting
Jun 25, 2026commented on a post
One of my first 10 users became a daily user. The other 9 didn't.
Jun 24, 2026commented on a post
Three Days Before Launch, I Let My Own Tool Tear Me Apart
Jun 18, 2026commented on a post
Your next interview shouldn't be your first practice.
Jun 17, 2026commented on a post
Show IH: Built a free Shopify app that shows ingredient safety ratings on beauty product pages — looking for beta testers
Jun 17, 2026commented on a post
Three Days Before Launch, I Let My Own Tool Tear Me Apart
Jun 17, 2026commented on a post
I got my first $159 in sales after realizing I was building in silence
Jun 17, 2026commented on a post
I built a free multilingual AI nutrition tracker solo — launching on Product Hunt today!
Jun 17, 2026commented on a post
3 weeks after I posted CapyBro here: what Product Hunt, the Microsoft Store, and a stack of blog posts actually did
Jun 17, 2026commented on a post
I built and launched a Google Ads audit tool in 48 hours and here's exactly what I did!
Jun 17, 2026commented on a post
I got tired of pasting client documents into ChatGPT and hoping for the best
Jun 16, 2026commented on a post
I built a tool to help job seekers bypass the application black hole
Jun 16, 2026commented on a post
My image tool has zero server costs by design — now comes the hard part: distribution
Jun 16, 2026commented on a post
I spent 4 months building a Google Business Profile tool — 450K lines of code, solo, $0 revenue so far
Jun 16, 2026commented on a post
I built a CSV cleaning tool after wasting too much time on dirty data.
Jun 16, 2026commented on a post
How an Army Officer & an Adidas Employee Quit Their Jobs to Build a Web Tool with 550K+ Daily Impressions
Jun 16, 2026commented on a post
I Built an App to Solve My Own Training Problem
Jun 16, 2026commented on a post
We’re building ClaviSay to help people learn English from what they already read
Jun 16, 2026commented on a post
I built and launched a Google Ads audit tool in 48 hours and here's exactly what I did!

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