Idempotency keys in payment flows
Why duplicate webhook delivery is a feature, not a bug — and how to design handlers that survive it.
paymentsstripereliability
Blog
Notes on building and operating complex systems — written for engineers who ship to production, not slide decks.
Welcome to oleggavrilov.com
A retro-styled corner of the web for engineering notes, services, and system-building thoughts.
metaengineering