565,528 Lines. 2,721 Commits. 1,060 Bug Fixes. Here’s What I Learned. After months of building ShieldMod (started October, launched November, still going strong into 2026) - a licensing platform s...
The Heisenbug Some bugs are easy. They happen every time, you debug them, you fix them. Done. Then there are Heisenbugs - bugs that only appear when you’re not looking. Bugs that work fine when y...
Monday Morning Massacre It was a Monday morning. I opened my support dashboard expecting the usual trickle of questions. Instead, I found 47 HWID reset requests. Forty. Seven. All with the same ...
When Logout Becomes an Infinite Loop Picture this: You’ve just deployed your beautiful authentication system. Users can log in, browse around, do their thing. Life is good. Then someone clicks the...
The Beginning of a 565,528 Line Journey It’s been almost 2 months since I launched ShieldMod in early November - a licensing distribution system for game modding developers. The project is still a...
Introduction If you’re using the npmmirror.com registry (Taobao/Alibaba’s npm mirror) and encountering audit errors during package installation, you’re not alone. This is a common issue that stems...
Headings Today, let’s dive into another popular problem from Leetcode, the “Valid Palindrome” problem. This problem is fundamental for understanding string manipulation and the two-pointer techniq...
Headings After diving into the Two Sum problem, today let’s explore another classic problem from Leetcode, the “Remove Element” problem. This problem is straightforward but can be solved using dif...
Headings It has been more than a month since I joined the South Korea military. There were a lot of things happened such as the basic training, an additional training unit, and the newly assigned ...
Headings Note: This is not a tutorial for obfuscation nor deobfuscation. This post is for educational purposes only. Recently, before I serve for the military to fullfill my duty as a Korean ...