GefyDev • University of Buenos Aires • CNBA Alumnus • Buenos Aires, Argentina

Hi, I am Genaro Febbo Yapur

Full-Stack Developer

I develop modern web applications, reactive interfaces, and high-performance tools with TypeScript, JavaScript, React, and Astro. Focused on page load speed, clean architectures, and fluid experiences.

npx gefydev

Available for projects & opportunities

Explore Projects Get in Touch

Genaro Febbo Yapur

@gefydev

Univ. of Buenos Aires

University Univ. of Buenos Aires

High School CNBA Alumnus

Location Buenos Aires, AR 🇦🇷

01. // PROJECTS & SHOWCASE

Core Projects

Web applications, platforms, and native tools engineered with a focus on performance and community value.

Spotifust

spotifust.gefy.dev 2

Spotifust

⭐ Flagship Project

Flagship project. A lightweight Spotify client built from scratch in Rust, engineered for minimal memory footprint, instant startup, and blazing fast audio streaming.

Rust Iced (GUI) Rodio (Audio)

Live Demo Source

ComiDólar

comidolar.com.ar 2

ComiDólar

In Production

Production web application providing real-time tracking of all Argentine dollar denominations. Engineered with Astro, TypeScript, and Argentina Datos API, coupled with automated CI builds every 30 minutes.

Astro TypeScript Tailwind CSS GitHub Actions

Live Demo Source

GenaCleaner

github.com

GenaCleaner

CLI & TUI

Modular Rust-powered terminal TUI for deep Android debloating and system maintenance via ADB, delivering high-speed execution and an elegant console interface.

Rust TUI / Terminal ADB / Android

CLI / TUI Tool Source

412 Stream

cuatrodoce.vercel.app

412 Stream

High-performance interactive web experience for the prominent football debate streaming show 412. Built with Astro and modern CSS grid architecture for responsive media consumption.

Astro TypeScript Tailwind CSS

Live Demo Source

BlackMaps Website

github.com 1

BlackMaps Website

Interactive cartography and geographic storytelling platform for the BlackMaps project, featuring dynamic map layers and visual demographic analysis.

JavaScript Leaflet Maps Tailwind CSS

CLI / TUI Tool Source

OPEN SOURCE CONTRIBUTIONS

Open Source Contributions

Active development and contributions across open-source ecosystems.

REVENGE977 / stremio-enhanced Core Contributor 8 PRs merged 819 stars

Significant contributions to the community-driven Electron desktop client for Stremio, implementing plugin system enhancements, theme customizations, and performance optimizations.

TypeScript Electron React

View on GitHub

02. // TECH_STACK & ECOSYSTEM

Technologies & Tools

Languages and modern tools I use to engineer robust, high-performance web applications.

PRIMARY WEB STACK

Primary Language // Fullstack

TypeScript

Rigorous static typing, robust interfaces, and end-to-end type safety for scalable and maintainable web applications.

Strict Mode Generics Type Safety ESNext

Web Engine // Runtimes & APIs

JavaScript (ESNext)

Deep mastery of the JS engine, asynchronous event loop, direct DOM manipulation, and high-performance Web APIs.

Async / Await DOM APIs Event Loop Modern Web

UI Engineering // Components

React / Preact

Component-driven UI engineering, custom hooks, optimized state architecture, and smooth 60fps micro-interactions.

Hooks State Management Virtual DOM Clean Components

Web Framework // SSR & Islands

Astro

Blazing fast web architecture with Server-Side Rendering, partial island hydration, and zero unnecessary client JavaScript.

SSR Islands Architecture View Transitions Content Collections

LANGUAGES & FOUNDATIONS

Systems & CLI // Exploration

Rust

Systems and low-level ecosystem for crafting CLI/TUI utilities, lightweight native clients, and safe concurrency exploration.

Iced GUI Tokio Async Memory Safety TUI / CLI

Foundations & Memory // UBA Exactas

C

Deep understanding of manual memory management, pointers, POSIX system calls, and machine-level algorithms.

Pointers Memory Layout POSIX CS Foundations

Data Structures // UBA Exactas

C++

Complex data structures design, templates, object-oriented programming, and efficient algorithmic implementations.

STL OOP Data Structures Algorithms

Scripting & Algorithms

Python

Task automation, data analysis, rapid algorithmic prototyping, and auxiliary developer tooling.

Automation Data Analysis Scripting Prototyping

WEB ECOSYSTEM & RUNTIMES

Design Tokens & Layout

Tailwind CSS

Token-based design systems, responsive fluid layouts, and hardware-accelerated visual micro-interactions.

Tailwind v4 Design Tokens Fluid UI Responsive

JavaScript Runtimes

Bun & Node.js

Fast scripting, ultrafast bundling with Bun, lightweight backend servers, and advanced npm package management.

Fast Bundling HTTP Servers CLI Tooling npm / bun

Modern Tooling & Bundler

Vite

Instant ESM-based dev environments, lightning fast HMR, and optimized production build pipelines.

Hot Reload ESM Bundler Plugins Rollup Engine

SYSTEMS, DATA & TOOLS

Development OS & Scripting

Linux & Shell Scripting

Primary development OS, Bash/Zsh automation scripting, server configuration, process management, and POSIX utilities.

Bash / Zsh POSIX Tools Process Management CLI

Databases & SQL

PostgreSQL & SQLite

Relational data modeling, optimized SQL queries, data integrity, and embedded databases for local applications.

Relational Data Query Tuning Embedded DB ACID

Version Control & CI/CD

Git & GitHub Actions

Git branching workflows, automated Continuous Integration (CI) pipelines, quality linting, and automated deployments.

Branching GitHub Actions Automated CI Releases

Mobile Automation & CLI

Android Debug Bridge (ADB)

Command-line control, Android device automation, assisted debloating, and bridge debugging (featured in GenaCleaner).

Shell Automation Device Management Bridge Protocol

03 // EDUCATION & BIO

About Me & Education

Passionate about web engineering, computer science fundamentals, and clean code.

I'm Genaro Febbo Yapur, known in the developer community as GefyDev. My primary focus is full-stack web engineering, crafting fast, accessible, and intuitive applications with TypeScript, JavaScript, React, and Astro.

I am currently pursuing a Bachelor's Degree in Computer Science at the Faculty of Exact and Natural Sciences of the University of Buenos Aires, following my graduation from the historic Colegio Nacional de Buenos Aires (CNBA). This provides me with a strong mathematical and algorithmic foundation, complementing my development skills with languages like C, C++, Python, and ongoing exploration of Rust.

I enjoy architecting tools that empower communities and open-source ecosystems, optimizing every detail while crafting delightful user experiences.

Univ. of Buenos Aires

Computer Science

In Progress (Exactas)

CNBA High School

High School Graduate

CNBA Alum

Core Web Stack

TypeScript & Rust

High Performance

philosophy.rs

struct Developer {
  name: &'static str,
  university: &'static str,
  focus: Vec<&'static str>,
}

impl Developer {
  fn new() -> Self {
    Self {
      name: "Gena (GefyDev)",
      university: "UBA Exactas (CS)",
      focus: vec![
        "Web Performance",
        "Systems Architecture",
        "High-Precision UI",
      ],
    }
  }
}

// Engineering approach:

→ Deterministic systems & strict typing
→ Zero-bloat, sub-millisecond execution
→ Accessible, tactile & fluid interfaces

04 // CONNECT

Get In Touch

Interested in collaborating on a web project or discussing software engineering opportunities?

Let's build high-impact software

Feel free to send me an email, connect on LinkedIn, or explore my public repositories on GitHub. I respond promptly.

Email Address hi@gefy.dev

Send Email

GitHub

@gefydev

/in/gefydev

Availability

Open for open-source collaborations, software engineering projects, and employment opportunities.