Blog / Engineering Notes

Field notes from shipping systems.

Practical writing on Rails performance, frontend decisions, AI workflows, local development, and the tradeoffs behind reliable product engineering.

Rails Memory Growth and jemalloc

The Rails app looked fine after boot, then slowly grew until Kubernetes killed it.

Index

The page still works, but one request can quietly turn into hundreds of small queries.

React is still the safer default for many teams. Svelte makes me carry less code.

One Dockerfile, local feedback, and fewer production-only surprises.

A practical split between the clean CLI option and the Mac-native daily driver.