#Go

2 articles

The Hidden Cost of Overfetching — How a NAT Gateway Spike Led Us Down a Rabbit Hole

Apr 3, 2026 10 min read

A NAT gateway inbound traffic spike of 100MB/s with no deployment changes. The culprit wasn't the network — it was two overfetching bugs hiding in a Kafka consumer and a MongoDB query, exposed by moving to new infrastructure.

Shell #Git #Go

Git + Shell: Run Tooling Only on Files You Actually Changed

Mar 26, 2026 6 min read

A simple but powerful shell pattern — pipe git log into your tooling so you're only formatting, linting, testing, and scanning the files that changed, not your entire codebase.