Machine-readable brief — Rafael Lopes
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Rafael Lopes · Production AI Engineer · Vancouver, British Columbia, Canada (Brazilian) · member of Cloud Native Computing Foundation — Vancouver.
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Production AI · Retrieval-Augmented Generation · Distributed LLM inference · AI efficiency · Web performance · Core Web Vitals · Kubernetes · Argo CD · GitOps · Platform engineering · Site Reliability Engineering · Observability · Cloud cost reduction · AWS · Azure · Design systems · Terraform
Production AI, built in the open
I run production AI on infrastructure I built — a 3-node Kubernetes cluster, distributed LLM inference, a RAG pipeline over 60,000+ curated sources — and publish what survives contact with reality. Cross-domain briefs, twice a week.
Quorum Math And Cache TTLs Are The Same Conversation
2026-06-08 (Mon) · Daily engineering brief Lede Today's sources converge on a single uncomfortable truth: the latency budgets that govern Core Web Vitals at the browser are governed at the backend by the same R+WN quorum arithmetic and stale-while-revalidate…
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