Insights on payments, fraud, and orchestration
Engineering deep-dives, product thinking, and regulation guides from the Lunixi team.
What is the difference between a Payment Gateway and a Payment Operating System?
A gateway moves a transaction from A to B. An operating system decides where B should be — and learns from every payment.
How smart routing increases conversion rates
Authorization rates are not fixed. Routing each payment to the right acquirer recovers revenue you are silently losing.
Idempotency: the engineering method for preventing double payments
Networks retry. Users double-click. Without idempotency keys, that becomes a double charge. Here is how to design it out.
The CBRT guideline, in practice: a compliance playbook for payment companies
Transaction monitoring, fraud prevention, auditability — what the Turkish central bank actually expects, and how to build for it instead of bolting it on.
3DS 2.2: frictionless, challenge, and the engineering in between
Step-up only when risk demands it — and survive ACS retries, timeouts and mid-flow bank failures without ever charging twice.
Why payment-intent architecture beats the gateway charge call
A charge is a function call. An intent is a state machine. The difference decides whether retries, partial captures and ambiguous outcomes are features — or incidents.