Piotr Krzyzek

Your Review App Isn't a Widget. It's a Retention Engine.

Most Shopify stores treat reviews as a star-rating widget. Set up right, a review app is the quietest retention engine you own: timed requests, the right proof on the right page, and customer language for marketing. Here's the 10-minute audit we run in Delivery.

What Stripe, GitHub, and Twilio Teach Non-Technical Leaders About API Design

A customer got charged twice during a renewal meeting. The cause was not a bug, it was the API. What Stripe, GitHub, and Twilio teach leaders who will never write a line of code, plus a one-page audit you can run this week.

AI Is Now Your Buyer's Intern. Is Your Website Clear Enough to Pass the 20-Second Test?

Your buyer's first reader is no longer a human. Here is the four-question audit we now run on every B2B site before we touch the design, plus the three rules we used to rebuild a junk-drawer homepage.

Your Homepage Is Talking About You, Not To The Donor: A Donor-First Redesign Playbook For Nonprofits

Most nonprofit homepages are a museum of accomplishments. The ones that grow donor revenue read like a donor journey. Here is the sitemap shift, the two-hero A/B test, the Ways to Support hub, and the 5-minute audit you can run on your own homepage today.

How We Turned a 76-Page App Spec Into Something One Developer Can Ship

A 76-page MVP spec landed on one developer's desk. Three boring decisions turned it into something shippable: three named batches, an explicit Phase 3 list in writing, and developer annotations as part of the file.

Piotr Krzyzek © 2026