Matthias 'Yolgie' Holzinger

warcraft3-claude-code-sound-hook. Warcraft III worker voice lines as Claude Code hooks — hear 'Yes, milord' and 'Job's done' while coding

ds-rules-reference. TypeScript

Libation. Libation: Liberate your Library

claude-code-prompts. Independently authored prompt templates for AI coding agents — system prompts, tool prompts, agent delegation, memory management, and multi-agent coordination. Informed by studying Claude Code.

openclaw. Your own personal AI assistant. Any OS. Any Platform. The lobster way. 🦞

Picoclick-C3. C

ECC. The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

andrej-karpathy-skills. A single CLAUDE.md file to improve Claude Code behavior, derived from Andrej Karpathy's observations on LLM coding pitfalls.

LittleRelay. An Android app that bridges BLE devices and MQTT broker with bidirectional data flow.

audible-tools.github.io. Converts aax to audiofiles online. Please don't sue me amazon.

c3-fahrplan-druck. The Fahrplan in the style of a Fahrplan.

CongressChecklist. A list of things to do, to pack and tips on attending a congress, especially Chaos Communication Congress.

photon. an open source geocoder for openstreetmap data

SoCraTesAT-2025. C#

socrates-fahrplan. A schedule for unconferences similar to the ccc fahrplan, built on pocketbase-sveltekit-static

p5.party. p5.party is a library for easily creating online multi-user sketches with p5.js. With p5.party you can quickly prototype ideas for multiplayer games, real-time multi-user apps, and multi-computer art projects.

fancy-police. Haskell

react-bits. An open source collection of animated, interactive & fully customizable React components for building memorable websites.

tnyr.me. TypeScript

copyparty. Portable file server with accelerated resumable uploads, dedup, WebDAV, SFTP, FTP, TFTP, zeroconf, media indexer, thumbnails++ all in one file

logseq-mind-map. A mind map plugin for Logseq.

awesome-german-piracy. A curated list of (not only) German piracy sites.

from-zero-to-sso-hero. Let’s face it - most authentication setups in our company are inherited, rarely revisited, and often become siloed knowledge over time. This makes them harder to understand, improve, and modernize, potentially creating gaps in security or user experience. 🔓

NotifyIconPromote. Notification Icon Promoter for Windows 11

Taskmanagement-App. Python

firefly-iii. Firefly III: a personal finances manager

spring-boot. Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.

actions. A collection of GitHub Actions to accelerate your Gradle Builds on GitHub

HaveIBeenPwnedKeePassPlugin. KeePass plugin which integrates the k-Anonymity pwned password search from HIBP

gollum. A simple, Git-powered wiki with a local frontend and support for many kinds of markup and content.

2024. Advent of Craft 2024

hackingBuddyGPT. Helping Ethical Hackers use LLMs in 50 Lines of Code or less..

learn4haskell. 👩‍🏫 👨‍🏫 Learn Haskell basics in 4 pull requests

advent-of-code-kotlin-template. The Advent of Code template project for Kotlin

ktor-openapi-generator. Ktor OpenAPI/Swagger 3 Generator

boudicca_query_builder. JavaScript

potty-boom-boom. A raspian based lavatory media center used at EH16 to entertain and speed up toilet usage

nightjet-crawler. Fetches availability data and pricing for ÖBB Nightjet trains

boudicca.events. Event Aggregation/Publishing System

SoCraTes2023. C#

Homebank-Adapter. Automates the importing of bank data into Homebank

dalai. The simplest way to run LLaMA on your local machine

gpt4all. GPT4All: Run Local LLMs on Any Device. Open-source and available for commercial use.

prompts.chat. f.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy.

textual. The lean application framework for Python. Build sophisticated user interfaces with a simple Python API. Run your apps in the terminal and a web browser.

homelab. Fully automated homelab from empty disk to running services with a single command.

wttr.in. :partly_sunny: The right way to check the weather

winget-pkgs-automation. Automatically update package manifests at WinGet Community Repository.

Signal-Desktop. A private messenger for Windows, macOS, and Linux.

awesome-crawler. A collection of awesome web crawler,spider in different languages

awesome-sysadmin. A curated list of amazingly awesome open source sysadmin resources inspired by Awesome PHP.

awesome-selfhosted. A list of Free Software network services and web applications which can be hosted on your own servers

gamejamlinz2021. TypeScript

zxing. ZXing ("Zebra Crossing") barcode scanning library for Java, Android

fantasia-archive. A world-builder's best friend!

sanctuary-cheat-sheet. Functional programming cheat sheet for https://sanctuary.js.org/

component-matrix-calculator. calculates instability & abstractness for a multi-module gradle project and plots it in a metric

verilog2factorio. This project will compile verilog (a hardware description language) into factorio blueprints.

TomLehrerSongs. C#

icecream. 🍦 Never use print() to debug again.

Waehrungskonvertierung-Gurps-Gameofthrones. Tcl

workadventure. A collaborative web application (virtual office) presented as a 16-bit RPG video game

S.M.A.R.T-disk-monitoring-for-Prometheus. Prometheus node_exporter text_collector for S.M.A.R.T disk values

certbot-dns-inwx. INWX DNS authenticator plugin for certbot

node_exporter. Exporter for machine metrics

gauth. A simple application for multi-factor authentication, written in HTML using jQuery Mobile, jsSHA and LocalStorage.

idasen-control. Lets you control IKEA IDÅSEN desks from the command line.

stalin-sort. Add a stalin sort algorithm in any language you like ❣️ if you like give us a ⭐️

jku-room-search. Search for free rooms on the campus of the Johannes Kepler University Linz

thefuck. Magnificent app which corrects your previous console command.

Catalysts-Game-Jam-Sound-Effects. Sounds created for the Catalysts Game Jam

realworld. "The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

css-only-chat. A truly monstrous async web chat using no JS whatsoever on the frontend

AsciiArt. C

CP2020toGURPS4e. This is a conversion of R. Talsorian Games' Cyberpunk 2020 to GURPS 4e. Requires GCS to work.

cplusequality. Feminist Software Foundation C+=, a new language for us feminists

code-art. Experiments in procedurally generated art.

PySnooper. Never use print for debugging again

pandoc-latex-template. A pandoc LaTeX template to convert markdown files to PDF or LaTeX.

coderdojo-linz.github.io. Website of CoderDojo Linz

s2client-api. StarCraft II Client - C++ library supported on Windows, Linux and Mac designed for building scripted bots and research using the SC2API.

TypeScript. TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

keepass2-haveibeenpwned. Simple Have I Been Pwned checker for KeePass

public-transport-enabler. Unleash public transport data in your Java project.

AdventOfCode. My C# and F# Advent Of Code solutions

advent-2018-kotlin. :christmas_tree: Advent of Code 2018: Solutions in Kotlin

gcs. GURPS Character Sheet

volkswagen. :see_no_evil: Volkswagen detects when your tests are being run in a CI server, and makes them pass.

giggity. Generic Android conference schedule viewer

functional-programming-introduction. Java

kata-bootstraps. Empty projects for different languages with a failing test

intellij-community. IntelliJ IDEA & IntelliJ Platform

kotlin. The Kotlin Programming Language.

megaio-rpi. Command Line and Python for Raspberry Pi Mega-IO Expansion Card

dogeart.blocks. DIY (Do-It-Yourself) - Yes, You Can! Design Your Own Doge (Shiba-Inus) Using (Building) Blocks in the 24×24px Format And Much More

git-housekeeping. A script to check health of project folders

dvc. 🦉 Data Versioning and ML Experiments

Charlatano. Proves JVM cheats are viable on native games, and demonstrates the longevity against anti-cheat signature detection systems

PUBG-Radar. Kotlin

you-should-hire-phil.xyz. A website arguing the notion that you should hire me in 5 concise points.

plan. Wait. I have a plan.

profile-summary-for-github. Tool for visualizing GitHub profiles

34C3-Screen-Stuff. Put your Stuff here for the CCL internal Screens.

boardgame.io. State Management and Multiplayer Networking for Turn-Based Games

url-shortener-kotlin. Url Shortener with Kotlin, Spring Boot and Redis

gitprompt. An efficient, highly configurable prompt for Git status information in command-line shells

awesome-speakers. Awesome speakers in the programming and design communities

Free-Security-eBooks. Free Security and Hacking eBooks

networkx. Network Analysis in Python

socrates-2017.

every-programmer-should-know. A collection of (mostly) technical things every software developer should know about

technologieplauscherl.github.io. Technologieplauscherl Website

Navigator. Bookmarks navigation

coreNotify. chrome notification extension for CORE smartwork

catalysts-bot. Bringing back the glorious lunchbot! :fork_and_knife:

stack-overflow-import. Import arbitrary code from Stack Overflow as Python modules.

vrome. Vrome: Bringing Vim elegance to Chrome

MoodleScraper. scraping resources from moodle

reactive-web-applications. Sources of the sample applications of the Reactive Web Application book

JamBrain. The software powering Ludum Dare game jam events

hotel. 🏩 A simple process manager for developers. Start apps from your browser and access them using local domains

slack-coc. Slack Code of Conduct

pr3zale. A simple and less-data presale system for hacker events and all other live events.

TrumpScript. Make Python great again

gitter. Moved to GitLab

lets-chat. Self-hosted chat app for small teams

tut-react-and-spring-data-rest. React.js and Spring Data REST :: A tutorial based on the 5-part blog series by Greg Turnquist

junit-framework. ✅ The programmer-friendly testing framework for Java and the JVM

reveal.js. The HTML Presentation Framework

engelsystem. Shift planning system for chaos events.

hacker-scripts. Based on a true story

junit4. A programmer-oriented testing framework for Java — :warning: maintenance mode

thegreatsuspender. A chrome extension for suspending all tabs to free up memory

certbot. Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.

prawn. Fast, Nimble PDF Writer for Ruby

ohmyzsh. 🙃 A delightful community-driven (with 2,500+ contributors) framework for managing your zsh configuration. Includes 300+ optional plugins (rails, git, macOS, hub, docker, homebrew, node, php, python, etc), 140+ themes to spice up your morning, and an auto-update tool that makes it easy to keep up with the latest updates from the community.

rbenv-bundler. an rbenv plugin that makes shims aware of bundle installation paths

ruby-build. A tool to download, compile, and install Ruby on Unix-like systems.

rbenv. Manage your app's Ruby environment

humble-games. All the games from Humble Bundle (before the Humble Store)

node-steam-trade. Node.js wrapper around Steam trading

node-steam. Interface directly with Steam servers from Node.js

engelsystem-api. Python

Kotti. Kotti is a high-level, Pythonic web application framework based on Pyramid and SQLAlchemy. It includes an extensible Content Management System called the Kotti CMS.

pyramid. Pyramid - A Python web framework