Notes on building software.

I'm Lijin P. I write about React Native and Expo, web engineering, and the small decisions that make products feel good to use.

Hello, world — why I started writing

A short note on what this blog is for: working notes on React Native, Expo, and shipping products that feel good to use.

iOS and Android disagree about shadows. Here's a small, predictable approach that looks the same on both — plus why elevation keeps betraying you.

A pragmatic EAS build and update setup — three profiles, OTA updates on the right channels, and the guardrails that keep releases boring.