Articles on software delivery, payments, databases, cloud platforms and the decisions that help a digital product stay useful over time.
How to build duplicate-proof payment webhook consumers in Node.js and Redis that stay correct when callbacks are retried, delayed or delivered out of order.
How to prevent double spends in PostgreSQL wallets and ledgers using SELECT FOR UPDATE, short transactions, consistent lock ordering and the right isolation level.
A practical guide to the strangler fig pattern: moving a legacy ERP or business monolith to Next.js and Go step by step without interrupting live users.
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