Informatics student at ITS Surabaya
I turn raw data into something people can act on, then spend the evening theming my desktop.
Cleaning data and ricing a Linux desktop scratch the same itch for me: I keep adjusting small things until nothing looks off. The difference is that nobody asks to see my fish config. Until now.
It's a real shell, sort of. Type help, or tap a command.
~ via fish
fastfetch
hosea@debian
A pixel-art hack and slash for the browser and phones. Pick one of eight fighters, from a samurai to a programmer in a wheelchair, hold the attack button to charge a heavy blow, survive waves that twist the rules, fight elites and pick boss relics, launch enemies into each other and beat ten bosses, ending with the game's own developer on wave 50. Every sprite, sound and song is generated in code.
JavaScript, Canvas, Web Audio API
A free video editor for Linux, Windows and macOS: timeline, titles, color, an audio mixer and captions from speech. No account, no watermark, no paid tier.
Electron, React, TypeScript, WebGL2, FFmpeg
A parkour game where every stone is a live Ethereum transaction. Reach the newest block before the rising floor catches you. Plays with keyboard and mouse, or fullscreen in landscape on a phone with touch controls.
JavaScript, Three.js, viem, Ethereum
Everything else lives on GitHub.
ITS Surabaya
Informatics Engineering, GPA 3.77
The work I enjoy most starts with a messy dataset and ends with a table or chart someone can make a decision from.
The ITS rectorate, Surabaya
Debian + GNOME
Wayland, fish, Starship, Spicetify
My actual desktop. Themed down to the terminal, with fastfetch ready for the screenshot.
My desktop, my screenshot
HMTC ITS
Head of Event at HMTC
Outside class I plan campus tournaments and run the team behind them, then catch up on code late at night.
With the HMTC crew
Schematics 2026
HMTC ITS
Schematics is the yearly tech event Informatics students at ITS put on. This was the crew on the day.
At the Schematics 2026 photo board
Last day at HMTC STI
TC Grandcup and TC Quadrathlon
My last day working in STI, after running the two events I worked on: TC Grandcup and TC Quadrathlon.
With the STI crew
Cleaning raw data in Python and grouping or charting it until the pattern is clear, for example with K-means clustering.
Python, pandas, scikit-learn, Jupyter
Relational schemas normalised in SQL, and the queries that pull data out of them for analysis.
PostgreSQL, MySQL, SQL
Debian with GNOME on Wayland, themed down to the terminal: fish with a Starship prompt, fastfetch for the screenshots, and Spotify skinned with Spicetify.
Debian, GNOME, fish, Starship, fastfetch, Spicetify
From wireframe to finished interface in Figma, with accessibility checked along the way.
Figma, Design systems, Accessibility
Five organisations, from a school treasury to national tech-event sponsorship.
Lead a team of 7 that finds sponsors and handles each deal from first contact to delivery.
Apr 2026 - Present
Pitched Schematics 2025 to 160+ companies and negotiated the deals.Delivered the promised branding to 10+ sponsors.
Mar 2025 - Dec 202510 mos
Run the team behind TC Grandcup and TC Quadrathlon, including logistics, budget, and equipment.
Mar 2026 - Present
Planned the outgoing cabinet's farewell for 40+ members and helped keep it on schedule.
Dec 20251 mo
Looked after speakers and guests at an event with 100+ attendees.
Nov 2025 - Dec 20252 mos
Attended 4+ workshops on machine learning, cybersecurity, and software engineering.
Nov 2024 - Present
Attended 3+ sessions on startup strategy and testing product ideas.
Sep 2024 - Present
Handled the money for 100+ members, over Rp 12,000,000 in one school year.Wrote 12 monthly reports and a yearly report for the board.
Aug 2022 - Aug 20231 yr 1 mo
A project, an event, a question about something on this page. The form goes straight to my inbox.
Surabaya, Indonesia
~ ./portfolio
mounting page