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Cloud IAM Least-Privilege Without Breaking Everything
Least privilege fails when it's a one-time audit that locks things down until something breaks, then gets reverted. The iterative, log-driven approach that tightens permissions safely — and the policies we stopped writing by hand.
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••4 days ago
Prompt Caching for Production LLM Apps — Cutting Cost and Latency at the Token Layer
A long, stable system prompt re-billed on every request is money on fire. How prompt caching works, where the cache boundary belongs, and the structuring discipline that got us a big cost and latency cut without changing behavior.
KU
Kiril Urbonas·4 min read·3
••5 days ago
Linux Memory Pressure — Reading PSI Before the OOM Killer Reads You
Free memory is a lie and load average doesn't see memory stalls. How Pressure Stall Information gives you a direct, early signal of memory contention — and how we wired it into alerts and autoscaling.
KU
Kiril Urbonas·4 min read·1
