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Penfore/README.md

πŸ‘‹ Hi, I'm FΓΊlvio Leo

πŸ“« Connect with me

LinkedIn Email


Always learning, always building. Open to collaboration and contributions.

I'm a Software Developer from Brazil with experience in Mobile and Web Development. Currently, I work professionally with Flutter, Angular and .NET, and I'm building a strong portfolio in Mobile (Flutter, Kotlin, Swift) and Ruby on Rails.

I'm passionate about finance, technology, and open source. My goal is to create software that helps people and also share knowledge through contributions.


πŸš€ Tech Stack

  • Mobile: Flutter, Kotlin (Jetpack Compose), Swift (SwiftUI)
  • Web / Backend: .NET, Angular, Ruby on Rails, Hotwire (Turbo + Stimulus)
  • Databases: PostgreSQL, MySQL, SQLite
  • Languages: Portuguese (native), English (fluent), learning German

πŸ“‚ Featured Projects

Here are some of the projects I'm developing and maintaining:

  • 🎨 dither_it βœ… (Ready for use) Dart GitHub release A comprehensive Dart library implementing multiple dithering algorithms (Floyd-Steinberg, Riemersma, Ordered). Perfect for image processing with high performance and pure Dart implementation.

  • πŸ“± Our Pomodor (Flutter) βœ… (Ready for use) Flutter iOS Android GitHub release A simple and effective Pomodoro timer app built with Flutter. Open-source productivity tool with clean Material Design interface.

  • πŸ“± Our Currency Converter (Swift) (Work in Progress) Swift iOS iOS app built with SwiftUI following MVVM architecture. Features real-time currency conversion with API integration, conversion history, and secure offline fallback.

  • 🌐 Our Projects (Ruby on Rails) (Work in Progress) Ruby on Rails A Trello-like project management system using Rails 8, Hotwire (Turbo + Stimulus), TailwindCSS, Devise, and SQLite.

  • πŸ“Š Our Finances (Kotlin Jetpack Compose) (Work in Progress) Kotlin Android Modern personal finance management app with Clean Architecture, MVVM, Room database, and comprehensive transaction tracking. Features Material Design 3 and complete test coverage.


🌍 Open Source Contributions

I have contributed with translations in different projects, particularly focused on the GNOME and GTK ecosystem:

  • πŸ• Flowtime - Modern Pomodoro timer for GNOME
  • 🎨 Halftone - Image dithering application for Linux
  • πŸ“Ž Paper Clip - Simple and intuitive clipboard manager
  • πŸ“‹ Planify - Task and project management application
  • πŸ“… iPlan - Planning and scheduling tool

I believe in the power of collaborative development and enjoy contributing to projects that make technology more accessible to users worldwide.

🎯 Contribution Philosophy

  • Quality over Quantity: Focus on meaningful contributions that add real value
  • Documentation Matters: Well-documented code helps everyone
  • Testing is Essential: Comprehensive test coverage ensures reliability
  • AI-Assisted Development: Embrace modern tools while maintaining human oversight and creativity

πŸ“Š GitHub Stats

FΓΊlvio's GitHub stats

Top Languages


✨ Always learning, always building. Open to collaboration and contributions.

Pinned Loading

  1. dither_it dither_it Public

    DitherIt is a Dart library that implements various dithering algorithms.

    Dart 4

  2. our-finances our-finances Public

    A beautiful, modern personal finance management app built with Jetpack Compose following Clean Architecture and MVVM principles.

    Kotlin 1

  3. our-pomodoro our-pomodoro Public

    A beautiful Pomodoro Timer app built with Flutter following Clean Architecture principles.

    Dart 1

  4. our-projects our-projects Public

    Project management system built with Ruby on Rails featuring Kanban interface, Devise authentication, Stimulus drag & drop functionality, and responsive design using Tailwind CSS.

    HTML 1

  5. our-currency-converter our-currency-converter Public

    A clean, efficient and reliable currency converter app built with SwiftUI following MVVM architecture principles.

    Swift 1