Mateusz Bagiński

ts-c-compiler. ⚙️ C99-compatible multipass compiler written in TypeScript with GCC extensions support. Features a handcrafted left-recursive parser, custom IR, SSA-based optimizer, and a full frontend/backend pipeline. Compiles to x86 machine code with integrated assembler and emulator.

librus-api. 📚🇵🇱 A free, open-source utility for scraping data from the Synergia Librus (http://synergia.librus.pl/) electronic gradebook. Developed and maintained by the community, it allows easy access to grades, attendance, messages, and more - completely free of charge.

micro-racing. 🚗 🏎️ 🎮 A browser-based isometric racing game built with a custom WebGL 1.x engine. Features real-time multiplayer with client-side prediction, spatial optimizations via quad trees, and AI opponents powered by neural networks trained through genetic algorithms.

ckeditor5-phoenix. CKEditor 5 for Phoenix - rich text editor for Elixir apps! Easy setup, supports live-view data binding, dynamic loading, and localization. Plug-and-play modules, JS hooks, and full customization support. Ready for both open-source and commercial use!

hetzner-podman-bunjs-deploy. Example of secure and production-ready Bun.js application deployment to Hetzner Cloud utilizing Alma Linux (RedHat compatible) with rootless Podman Quadlet systemd services and SELinux protections.

pyWinUSB. A simple tool written in Python, made to help with creating a bootable USB Windows drives. Program supports Windows Vista images and newer

Soccer.js. :video_game: :soccer: html5 socket based soccer game inspired by haxball

ckeditor5-rails. 🚀 CKEditor 5 Ruby Gem – a powerful WYSIWYG editor for Rails! Smooth integration with web components and helper methods. 💎 Supports GPL & commercial licenses, flexible CDN options, and translations. 🎨 Easy setup with presets, plugins, and async loading. ⚡

reddit-news. :newspaper: simple browser extension that shows recent news from reddit.com

ckeditor5-livewire. 📝 CKEditor 5 for Livewire - easy WYSIWYG editor for your Laravel apps! ⚡ Works great with Livewire components or regular Blade forms. 💡 Simple setup, supports custom builds, dynamic loading, and localization. 🔧 Includes JS hooks, reusable components, and full customization. 🎯 Perfect for both open-source and commercial projects!

ckeditor5-blazor. CKEditor 5 for Blazor - a package that integrates CKEditor 5 with .NET Blazor. It supports various CKEditor modes, including multiroot, decoupled, classic, and balloon. It allows you to define your own plugins and does not require npm or a JavaScript bundler.

neural-cars. 🚗 Neural network 2D cars ray collision detection using ML genetic training algorithm

ckeditor5-symfony. CKEditor 5 Integration for Symfony A modern, powerful rich text editor integration for Symfony applications. Easily configure builds, manage file uploads, and use custom toolbar sets directly within your Twig templates and Form types.

upolujksiazke.pl. 📖 Open-source platform that aggregates reviews, book ratings and brochures written in React + TypeScript + NestJS + Redis + ElasticSearch

nomad-cheap-cluster. Cheap Nomad + Vault + Consul + Pulumi + Traefik + Ansible IaC cloud cluster live example

under-control. 📝 🐕 Are you losing sanity every time you need to make a form? Are you have enough of all antipatterns and cursed frameworks in React? Screw that! Treat all forms and inputs as a recursive composable control!

bower-sinopia-proxy. Download NPM/sinopia packages using Bower

posix-tree. Tree style like file listing written in C

chrome-otp. Generate OTP password in chrome extension

android-puzzle. 4x4 android animated puzzle

rails-critical-css. Generate on demand critical css for route actions with minimum effort. It is pretty similar to other rails critical css gems but instead of pregenerating critical css in separate task this gem generates them in fly, dynamically and allows to prepend custom SCSS files to generated critical bundle.

ansible-docker-swarm-traefik-template. Ansible template that shows how to create dynamic staging servers with <branch-name>.<host>.com

searchpunch. 👊 0-downtime elasticsearch reindex functional utility. Automatically detect ES mapping modification and reindex modified records. Use namespaces in your indexes. Create aggregated filtering for shops.

ts-union-struct. Small typescript utility class that helps with creating bit fields and C unions

WykopExt. A simple web browser extension that shows notifications from Wykop.pl

ramda-graph. Simple functional graph implementation in Ramda.js

hetzner-minio-backup-server. Example of a rock-solid centralised backup server hosted on Fedora CoreOS in the Hetzner Cloud. Uses tools such as MinIO, NGINX, Podman Quadlet and Letsencrypt.

express-graphql-sequelize-example. Example app using Express.js, GraphQL, sequelize and redis in Node.js

CleanCSS. Tiny Semantic's style LESS library

ad-tester. Simple browser extension that helps with live debugging frame ads

react-asynchronous-ssr-blog. SSR rendering asynchronous react components in Express with Knex/Objection.js DB connection

java-redux. Redux implementation written in Java

pyFileTransfer. Small python3 tool that helps with sending files through local network

cli-calculator. ONP cli calculator written in Java

WebBugs. Monsters that destroy websites!

SkiJump.js. Simple multiplayer ski jumping game that works in browser

news-hub. JavaScript

arduino-tetris. Arduino Tetris that uses SN74HC595 shift registers and matrix led displays

tampermonkey-scripts. Collection of small tampermonkey scripts

slide-puzzle. Java Swing 4x4 slide puzzle game

MOSIR-Messaging. PHP

ckeditor5-bad-apple. 🎬 Run a full mono anime at 30 FPS inside a <table>. No reason, just chaos. CKEditor 5 fills hundreds of <td>s with Bad Apple — pointless, mesmerizing madness. 💥 GPU not guaranteed to survive. Welcome to time wasting, upgraded. 🚀

Map-Editor. Map editor to Rectangle Adventures

gruszko-bot. Bot, który dopilnuje porządku na Wykopie zgłaszając komentarze i wpisy łamiące regulamin

Tetris.js. Simple tetris written in JavaScript