Hi, Jozef here.
I'm a 17-year-old developer who's been fascinated with building things since I was ten. I love coming up with creative, efficient, and useful solutions to problems.
Featured Picks.
My top open-source tools, integrations, and projects I actively maintain.
transiq
A toolset for processing and publishing Slovak public transport data into open GTFS format.
zed-discord-presence
An extension for the Zed editor that adds support for Discord Rich Presence using LSP.
setup-bun
Set up your GitHub Actions workflow with a specific version of the Bun runtime.
e4mc-retro
A backport of the e4mc mod, allowing you to open your Minecraft LAN world to anyone over the internet — even on older Minecraft versions.
Behind the Code.
Hey, my name is Jozef Steinhübl ("bl" - not "bel", I'm not a bell), but online you'll probably find me as hyro, hyriik or xhyrom.
I'm a 17-year-old developer who's been fascinated with building things with code since I was ten. I love coming up with creative, efficient, and useful solutions to problems. I enjoy exploring different languages and tools, and continually learning new things as I go.
I believe that the best technology is open, transparent, and built with purpose. That's why much of my work is open-source and available on GitHub. Whether I'm building custom tools or contributing to projects used by others, I love the collaborative nature of code.
Experience & Education
General Studies
2020 — 2028
Highlights & Achievements
International Olympiad in AI
Represented Slovakia 🇸🇰 as part of the country's first-ever IOAI team in Astana 🇰🇿, competing among 471 participants from 108 countries.
Zenit in Programming
Seasons 2024/2025 and 2025/2026
Slovak Olympiad in AI
2025/2026 National Finals
MUNI's Correspondence Seminar in Informatics
Seasons 2024/2025 and 2025/2026
Tour de App
2024/2025 Finals