Sung J. Kang

sjk@sungjkang.com:~ $

// writing

The Language Doesn't Matter Anymore. The Patterns Do.

LLMs can write in any language. The skill that separates engineers now is knowing design patterns and when to apply them, especially in agentic software development.

2026-06-27 software-engineeringdesign-patternsaiagenticarchitecture

Just Use Postgres for Everything

Bank of Parents is a side project I run alone. It uses one database for everything a backend usually spreads across a queue, a cache, a document store, an auth service, and a warehouse. Here is why, what it costs, and where it stops working.

2026-06-18 postgresbackendarchitectureinfrastructurebank-of-parents