Playbook

Recurring patterns and decisions — what I pick, why, and the failure mode each choice prevents.

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Caching — the cheapest way to lose a weekend

Cache layers, TTL vs invalidation, stampede protection, key hygiene, and the case for not caching at all.

caching performance architecture

API design — the decisions that age well

Resource shape, error envelopes, idempotency, pagination, and versioning. What I pick, why, and the failure mode each choice prevents.

api architecture rest