Latest · September 2026
Designing a Payout System: What Payment-In Tutorials Don't Tell You
Payouts fail in ways payment-in doesn't. Lessons on beneficiary verification, double sends, compliance-first routing, and reconciliation.
Notes on payment infrastructure and working with AI in high-stakes code — written by someone who isn't an expert yet, just paying close attention.
Writing
How Do We Know a Customer Has Actually Received Their Money?
Webhooks vs. polling: how a payment system actually confirms money has arrived, explained through a grocery-store QR code.
Notes on Evaluating a New Payment API Before You Build the Adapter
Test the field mapping before frontend builds on top of it — a checklist for what to verify before writing adapter docs.
Design patterns aren't a catalog — they're a way to predict where change will hurt
A payment infrastructure engineer's notes on applying Chain of Responsibility, Adapter, Strategy, and Observer to a real virtual account creation flow.
Building this blog took longer than it should have
Domain, name, template, DNS — the small decisions that ate the time on a 'simple' blog setup.