Open Source Developer · Game Maker · Argentina

Álvaro González Ferrer // Kronoman & Kronopio

Bachelor of Computer Science · Nearly two decades in game development · Since 1982

Started on a Commodore 64. Built games in C++ from indie to large studios. Contributed to Debian and Ubuntu. Designed ERP systems for small businesses. Hacked together tools that scratch real itches. I open-source what I can - some projects are under NDA, the rest live below.

GitHub Sourceforge LinkedIn Itch.io

20+ public
projects

Background & Skills

Craftsman of software since childhood

CS graduate from Argentina. Linux power user and contributor to Debian, Ubuntu, Mint, and other global repositories. Fluent in English and Spanish. Passionate about releasing source code to the community - if it helps you, it was worth building.

My work spans game engines written at age 16 to ERP systems deployed in Buenos Aires, a GUI operating system that fits on a floppy disk, and a guitar tool with 4000+ scales. Low footprint, high craft.

Systems C++, C, Assembler, Pascal, BASIC

Web PHP, JavaScript, HTML5, CSS, Node.js, Express, Angular.js, jQuery

Data SQL Server, MySQL, MongoDB

Scripting Python, Bash

AI / ML LLM integration, prompt engineering, AI-powered app development, RAG pipelines, OpenAI & Anthropic APIs, generative AI workflows, AI agent design

Platforms Linux, DOS, Windows - from 386 to modern

Languages English · Spanish

Games

8 projects

★ Award winner 2004 · C++ · Cross-platform

KBall

Skill & reflex game - steer the ball through the level without falling, beat the clock, collect prizes. Full map editor included. Cross-platform: DOS, Linux, Windows. Won at the 2004 UTN/ADVA match. Also available from Ubuntu and Debian repos.

Get KBall →

C++ · Cross-platform · Linux repos

Kraptor

Old-school vertical scrolling space shooter. Fight through waves of enemies, collect powerful weapons, survive varied high-speed levels. Works on DOS, Linux, Windows - available in Ubuntu and Debian repos.

Get Kraptor →

C++ · Allegro · Built in ~1 week

Nacho Blaster

A gift game made from scratch in about a week for a friend. All graphics, sound, and music done by hand. Features a very interesting particle and explosion engine. A work of friendship with real craft behind it.

Nacho Blaster →

BASIC · Assembler · Built at age 16 · 1998–99

Graphical Adventure Engine

Not just a LucasArts-style game - a full engine with its own scripting language for creating graphic adventures. Coded on a 486, inspired by Full Throttle, Loom, Day of the Tentacle. Two complete adventures to play. Run with DOSBOX.

Time for adventure →

Retro · DOSBOX

Kronoide

A Breakout / Arkanoid clone, built for fun and nostalgia. Classic brick-breaking action. Play it with DOSBOX.

Retro fun →

Up to 10 players · Hot-seat · DOSBOX

KTank

Artillery game for up to 10 players. Set angle and power, destroy your opponents. Randomly generated destructible terrain, multiple environments, hot-seat multiplayer. Play via DOSBOX.

Play with friends →

C++ · Split-screen · vs CPU

Krono's Battle Zone

Tank battle for 2 players - split-screen, hot-seat or vs computer. Weather effects (rain, snow, fog, sandstorm), power-ups (shield, radar, repairs), destructible terrain, huge random maps.

Battle Zone →

★ Most Evil 2007 · SpeedHack · Built in 24 hours

Premier Warlord

Evil shooting action built in exactly 24 hours for SpeedHack 2007 - and won "most evil game" that year. Speed-coded in C++, full gameplay included.

Play the game →

Tools & Apps

7 projects

Android · Desktop · Open Source

Scrcpy Light Launcher

Control your Android phone from your desktop via screen mirroring. A very light, very fast, open-source alternative to bloated apps that drag in a million dependencies to do simple things.

Control your phone →

EXIF · Local · No cloud

Photo Organizer

Sorts local photo backups into year/month/day folders using EXIF data. Automatically detects the original capture date from photos and videos - no cloud required, no subscriptions.

Organize your photos →

PHP · MySQL · Lightweight

KronoDataGrid

A featherweight PHP/MySQL data grid built because every other option was bloated or expensive. Includes an editable grid, a random name/surname generator, and a lightweight MySQL connection wrapper.

Get the grid →

PHP · MySQL · Linux/Apache · Source coming soon

ERP System

100% hand-built ERP for small Buenos Aires companies - clients, reports, orders, receipts, purchase orders, payroll. Built with PHP, MySQL, Linux/Apache. A practical open-source alternative to SAP and Oracle at SME scale.

Coming soon →

C · DOS / Linux / Windows · Runs on a 386

GNUitarra

All-in-one helper for string instrument players. 4000+ scale types, 60+ chord types, 60+ instruments (guitar, bass, banjo, sitar, ukelele, and many more). Can auto-generate solos and learning exercises. Extremely low footprint.

Time for a solo →

C · Assembler · Fits on a floppy disk

Kr Jr - GUI Operating System

A GUI operating system for old computers. Working desktop, working boot, runs MS-DOS software. Inspired by micro-kernels like QNX but 100% original code. Fits on a floppy, runs on a 386 with 1 MB RAM and no hard drive.

Retro OS →

Python · Bitso · ARS / USD

Bitcoin Swiss Army Knife

Command-line currency converter and crypto tool using Bitso. Place buy/sell orders, check ARS/USD rates, monitor economic indicators - faster than opening the app. My answer to Argentina's hyperinflation.

To the moon →

Docs & Notes

5 projects

Guide · DIY · Open Source

Computer Technician Guide

A practical guide to repairing computers for friends and family. Written by "the tech guy" - a CS grad who's been the family IT department for years. Embraces the DIY ethos that's quietly disappearing.

Repair your device →

Notes · Reference

Full Stack Development Notes

Personal reference notes for full-stack development - links, tools, and things that have proven genuinely useful in practice. Written for self-reference, shared freely for everyone else.

Full stack notes →

MySQL · PHP · Spanish content

Spanish Characters & MySQL

How to correctly store Spanish special characters in MySQL - fixing the classic "RubÃ©n" encoding nightmare. A common pain point explained clearly. In Spanish.

Spanish MySQL →

UADE · Argentina · Spanish content

College Notes

All notes from a Bachelor of Computer Science at UADE, Argentina. Released for future students and colleagues. I'm always ready to share knowledge and help the next generation. In Spanish.

Get the notes →

Harley · Sportster · 16 years · Spanish content

Harley Davidson Argentina Tips

Alternative parts list for Harley Davidson Sportster owners in Argentina - compiled over 16+ years of keeping a bike running through import bans. Started in 2004 with an XL883. In Spanish.

Get your motor runnin' →