THE JOURNAL
Notes on building, shipping & securing the web.
FEATURED · AI
How we shipped a support agent that resolves 62% of tickets
The architecture, evals and guardrails behind a production AI agent — and the three mistakes we made first.
Daniel Reyes
Sep 18, 2026 · 5 min read
E-commerce · 5 min
Running A/B tests when your store has modest traffic
Classic split testing needs more traffic than most stores have. How smaller stores can still make evidence-based changes without fooling themselves.
Sofia Lindqvist · Jul 08, 2026
E-commerce · 5 min
Replatforming an e-commerce store without losing revenue
Migrations fail on redirects, data and timing far more often than on design. A sequence for moving platforms without a dip in sales or search traffic.
Ravi Iyer · Apr 15, 2026
E-commerce · 5 min
The anatomy of a product page that converts
Product pages carry most of the persuasion in e-commerce. The elements that consistently earn their place, and the ones that mostly add weight.
Sofia Lindqvist · Feb 18, 2026
E-commerce · 5 min
What it really takes to build a multi-vendor marketplace
Marketplaces look like stores with more sellers. In practice they are two-sided products with payments, trust and operations problems a store never has.
Arjun Mehta · Dec 16, 2025
E-commerce · 5 min
Setting up payment gateways for fewer declines and lower fees
Payment setup is usually decided once and never revisited. Small changes to routing, authentication and retries can recover real revenue.
Maya Okafor · Oct 22, 2025
E-commerce · 5 min
Building product configurators that stay fast and usable
Configurators sell custom products well when they load quickly and never allow an impossible combination. The architecture and UX choices that matter.
Sofia Lindqvist · Aug 27, 2025
E-commerce · 5 min
Syncing ERP inventory with your store without overselling
Overselling is rarely a bug in one system. It is a timing problem between two. How to design inventory sync that holds up under sale traffic.
Maya Okafor · Jul 02, 2025
E-commerce · 5 min
What a B2B wholesale portal actually needs to do
Wholesale buyers behave nothing like retail shoppers. The core requirements for a portal that sales teams and trade customers will both use.
Arjun Mehta · May 07, 2025
One email a month. Only the good stuff.
Field notes from real client projects. No spam.