Writing
Tech
Articles on backend systems, data and AI. 2 in total.
- The Outbox Held, the Ledger Didn't Sep 2026 · 5 min What actually breaks without a transactional outbox, why a ledger nobody reads back isn't really double-entry, and what happens once you decide never to auto-correct money.
- Idempotency keys, under load Sep 2026 · 4 min What an idempotency key actually guarantees in a real settlement system, the two concurrency races that show up under load, and a gap that studying it surfaced, then closed.