@juliabreeden

Julia Breeden

@juliabreeden

Reflections on software engineering, and writing things I wish I'd understood earlier.

Joined December 2025

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Julia Breeden's blogs

Off the Happy Pathoffthehappypath.dev4 posts

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JBJulia Breedenoffthehappypath.devJan 12 · 8 min read

Building a Facial Tension Detector, Part 2

Part 1 of this series introduced the facial tension detector I am building, inspired by a rough night in the ER with a migraine. I am building this project to explore whether making facial tension visible and interruptible can meaningfully change how...

JBJulia Breedenoffthehappypath.devJan 8 · 7 min read

Building a Facial Tension Detector, Part 1

I’m building a web app that watches me while I work at my computer and alerts me when I start tensing my facial muscles. The goal is to notice tension earlier, interrupt it sooner, and see whether awareness alone can change an outcome. In other words...

JBJulia Breedenoffthehappypath.devDec 31, 2025 · 10 min read

OAuth Tokens in a Race: A Production Debugging Story

Note: After I reported and investigated the issue described in this post, Apideck published a guide outlining the issue and recommended mitigation strategies. If you’re looking for a practical reference, you can find it here. Part 1: The Problem Cont...

JBJulia Breedenoffthehappypath.devDec 28, 2025 · 4 min read

When TypeScript “Works” but You Still Lose Type Safety

At the beginning of 2025, I ran into a “bug” (caught before PRed!) that forced me to rethink what “type safety” actually means in a dynamic code path. My code was working, the data was correct, and the TS linter wasn’t yelling at me. The problem was ...

Julia Breeden

About

Available for

Julia Breeden's blogs

Recently published

Building a Facial Tension Detector, Part 2

Building a Facial Tension Detector, Part 1

OAuth Tokens in a Race: A Production Debugging Story

When TypeScript “Works” but You Still Lose Type Safety

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Julia Breeden

About

Available for

Julia Breeden's blogs

Recently published

Building a Facial Tension Detector, Part 2

Building a Facial Tension Detector, Part 1

OAuth Tokens in a Race: A Production Debugging Story

When TypeScript “Works” but You Still Lose Type Safety