✦ hello, world

Hi, I'm Mateusz 👋

I build odd little things — a sorting-algorithm visualiser, a from-scratch remake of a 1998 adventure game, and the occasional low-level rabbit hole. Full-stack by day, tinkerer by night.

Looking for the CV-and-job-titles version? That one lives on LinkedIn ↗.

See the projects ↓ Browse GitHub ↗

📍 Rybnik, Poland

✦ projects

Stuff I've built

A few things I made because I wanted them to exist. Most are open source — go ahead and poke around.

visual-sorting

Watch sorting algorithms race across the screen — and hear them while they sort. 20+ algorithms, real-time Web Audio, weirdly hypnotic. Easily my most-starred project.

Svelte
Web Audio
Algorithms

▶ Play with it Code ↗

wacki

A 1998 Polish point-and-click adventure, rebuilt from scratch in C/SDL2 — reverse-engineered from the original .exe, down to byte-identical save files. Runs on everything from a laptop to a PlayStation 2.

C
SDL2
Reverse engineering

▶ Play guide Code ↗

🔐

crypt3-md5

glibc's crypt(3) MD5 password scheme, faithfully reimplemented in TypeScript. A small deep-dive into a crusty old Unix primitive.

TypeScript
Crypto

Code ↗

🛰️

php-newcamd

A Newcamd card-server client in PHP — binary protocol wrangling and raw sockets in a language nobody expects to see it in.

PHP
Networking

Code ↗

📡

newcamd-client

The same Newcamd protocol, but a clean, typed TypeScript client this time.

TypeScript
Protocols

Code ↗