Engineering Blog of Jackson Smith

Welcome to the Jackson Smith blog.

Latest Posts

• Jun 10, 2026

  Discriminated Unions Across the Stack: Polymorphic JSON in Java, Kotlin and TypeScript

  This week I reviewed a teammate’s pull request that fixed a sneaky bug: a single, well-formed request had started returning 422 Unprocessable Entity after a dependency bump. The...

• Sep 22, 2024

  End-to-End Testing in React Native with Maestro A Comprehensive Guide Android

  Here’s the updated article with the additional section:

• Jun 10, 2023

  Migrating Existing Mobile App

  Codebase Switch: A Step-by-Step Guide to Migrating an Android App that Uses React Native Photo by Suzanne D. Williams on UnsplashIntroduction: When faced with the need to migrate an existing app to...