IOLI Crackme 0x01 walkthrough — converting hex to decimal to find the password, plus a closer look at how arguments are passed to functions in x86 assembly.

IOLI Crackme 0x00 walkthrough — finding the hardcoded password in IDA Pro and patching the binary to accept any input by changing a jz opcode to jmp.

How I won the GuideM Hunt the Kingdom blue team CTF — strategy, preparation, and the high-stakes final minutes that came down to four unsolved questions.

First-time experience ordering custom PCBs from PCBWay using the ESPBoy gerber files — the process, quality, and what comes next for future board designs.

Defcon RTV CTF writeup — reversing a Linux malware binary, bypassing ptrace anti-debugging, and recovering flags from shared memory and rootkit files.

Study notes on MAC spoofing — what it is, legitimate versus illegitimate uses, and how to change your MAC address using ifconfig or macchanger on Linux.

Practical Chicken Scheme FFI examples covering foreign-lambda, struct accessors, inline C code, memory management, and enum bindings for C interop.

Dropping C++ from my custom game engine in favor of pure C, and the cross-platform bugs that surfaced when C++ features I didn't notice were being used.

Applying Scheme naming conventions (?, !, %, *) to a game engine's scripting API and how it improved code readability with minimal effort.

Getting a custom C game engine to build on Linux, Windows, and macOS with one Makefile — lessons from cross-platform debugging and using Msys2 on Windows.