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LLM Streaming UX — Backpressure, Cancellation, Partial Results
Streaming LLM responses is easy until the client disconnects, the model stalls, or the user cancels. The patterns that keep streaming responsive without leaking spend.
Internal Developer Platforms — Backstage in Practice
We adopted Backstage for service catalogs and templates. What works, what was over-engineered for our size, and what we'd do differently.
Postgres Replication Lag — Monitoring and Failover Practice
Replication is the foundation of database HA. What we monitor, how we practice failover, and the gotchas that show up only when you actually fail over.
Bash One-Liners We Actually Use
A curated list of shell one-liners that earn their place in real ops work — the ones I reach for weekly, not the trick-shot variety.
Karpenter — Node Provisioning Patterns at Scale
After two years of running Karpenter on production EKS clusters, the NodePool patterns that survived, the ones we replaced, and the tuning that matters.
AI Agent Tool Design — Boundaries and Confirmations
When LLMs can call tools that change real state, the design decisions that matter most are about what's gated, what's automatic, and what triggers a human checkpoint.
Chaos Engineering — What We Actually Run as Game Days
We run a chaos game day each quarter. The scenarios that surfaced real problems, the ones that didn't, and the operational discipline that makes the practice pay back.
Postgres Connection Pooling — PgBouncer in Front of RDS
Why Postgres connection limits bite at unexpected times, the pooling layer we put in front, and the pool-mode tradeoffs we learned the hard way.
What Are Embeddings? A Beginner's Guide with Code
Embeddings turn text into numbers a computer can compare. Here's the working mental model, a runnable Python example, and where embeddings fit in real apps.
Terraform Tutorial — Your First Infrastructure-as-Code Project
Provision real cloud resources with Terraform — a VPC, an S3 bucket, and an EC2 instance — using the standard init/plan/apply workflow.
SSH Tutorial — Keys, Config, and Working Remotely
Generate an SSH key, set up passwordless login, and configure aliases for the servers you use daily — all without copy-pasting yet another long command.
Prompt Engineering Basics — From "Help Me" to Working Prompts
A hands-on intro to prompt engineering. Learn the four levers (role, format, examples, constraints) and watch a vague prompt turn into a reliable one.