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Time-Series Postgres: Declarative Partitioning in Practice
A 900GB events table where every query scanned four years to read one day. Range partitioning by month cut our dashboard queries from 8s to under 200ms.
Flux vs Argo CD: Picking a GitOps Engine in 2026
After running both in production across a dozen clusters, here's where Flux and Argo CD actually differ and which one we'd reach for now.
Argo CD ApplicationSets: Managing Many Clusters Without Copy-Paste
Twenty-three clusters, one app, and a folder of near-identical Application YAMLs that drifted constantly. ApplicationSets killed the copy-paste and the drift.
RAG Chunking Strategies: Fixed, Semantic, and Recursive Compared
Our support bot kept citing half a sentence and missing the answer that sat two lines below. The culprit wasn't the model, it was how we split the docs.
cgroup v2 Limits: What Actually Constrains Your Containers
A container with a 2-core limit was pegged at 100% CPU yet running slow. The throttling counter told the real story, and it wasn't the number we set.
Postgres Index Bloat: Detecting and Fixing It Before It Hurts
A 40GB index on a 6GB table was the first sign. Queries were fine until they weren't. Here's how we found the bloat and cleared it with zero downtime.
Turso vs Cloudflare D1: Choosing an Edge SQLite Database
Both put SQLite near your users, but they solve replication and write latency very differently. We ran the same schema on both for a month and picked one.
Cloudflare Workers vs AWS Lambda@Edge: Where Each Wins
We moved a rewrite-heavy request path off Lambda@Edge to Workers and cut p95 from 340ms to 41ms. Here's when that swap pays off and when it doesn't.
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.
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.
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.
Kubernetes Pod Disruption Budgets — Surviving Node Drains Without an Outage
Node upgrades, autoscaler scale-downs, and spot reclaims all drain nodes. Without PDBs they can take all your replicas at once. The budgets, probes, and graceful-shutdown handling that keep voluntary disruptions invisible to users.