Writing

PlayFab data operations are built on REST APIs. If you understand web servers and request/response patterns, you already know how PlayFab works.

A high-level overview of AI covering machine learning, deep learning, NLP, computer vision, robotics, and real-world applications with current challenges.

Bought an M1 Max MacBook Pro for iOS builds and remote work. Performance exceeded expectations, but it is heavy. An M1 Air would suffice for most dev work.

Unity Assert class provides assertion-based debugging. Assertions are stripped from release builds and help catch logic errors early during development.

Quick fix for Git clone SSL certificate errors on Ubuntu: disable SSL verification with a single git config command.

Fix the "permission denied 0.0.0.0:80" error on AWS Linux by using iptables to redirect port 80 to 8080. Ports below 1000 require root access.

Fix the "Image Optimization not compatible with next export" error by configuring the Akamai loader in next.config.js.

The opinions of people around you should not be taken as representative of everyone. A brief reflection on perspective and game development.

Use std::setw() from <iomanip> to cap the number of characters read by std::cin. The limit applies only to the next input operation.

Spent around 400,000 KRW on KTX, tickets, lodging, and meals to see a musical — and it was worth every penny. Hong Gwangho and Kim Junsu delivered an incredible live performance.

Implementing a billboard shader in Unity — a technique where quads always face the camera, commonly used for sprites, particles, and foliage.

It is time to admit it: Unity isn't just a usable engine — it's genuinely a great one.