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Achievement: Starstruckx2Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: YOLOAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Starstruckx2Achievement: Pair ExtraordinaireAchievement: Pull Sharkx3Achievement: YOLOAchievement: Arctic Code Vault Contributor

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MateusRodCosta/README.md

Hello, I'm Mateus Rodrigues Costa 👋

I also go by "Matias" in certain gaming contexts.

Software Engineer | Technical Writer

Penápolis - SP, Brazil

I am a driven Software Engineer with over 5 years of professional experience, passionate about crafting high-quality, performant, and resource-efficient software. My current focus is firmly rooted in native Android development utilizing Kotlin and Jetpack Compose, alongside systems programming and tooling with Rust.

💻 Tech Stack & Tools

  • Languages: Kotlin, Rust, Java, Dart, JavaScript, SQL
  • Mobile & UI: Jetpack Compose, Flutter, Clean Architecture, Multi-module design
  • OS & Systems: Linux (Fedora/RHEL ecosystem), Gio (GLib)

🚀 Notable Projects

  • Save Locally [Kotlin, Jetpack Compose, Android] [AGPLv3+] - An open-source (AGPLv3+) privacy-respecting Android utility built with Jetpack Compose. It registers as a Share target, invoking the system file picker to allow users to save files to any local directory, bridging the usability gap for apps lacking a native "Save" option
  • Vidya Music
    • Vidya Music (Rewrite) [Kotlin, Jetpack Compose, Android] [AGPLv3+] - Architected a complete native Android rewrite of the legacy application from the ground up to maximize performance. Built using a multi-module Clean Architecture approach, successfully migrating the active user base to a highly optimized native experience
    • Vidya Music (Legacy) [Dart, Flutter, Android, iOS] [AGPLv3+] - The legacy cross-platform player for the renowned VIP Aersia VGM playlist
  • bign-handheld-thumbnailer [Rust, Gio, Linux] [GPLv2+] - A Linux system tool built in Rust to extract embedded cover art from Nintendo DS and 3DS ROMs. It strictly adheres to the Freedesktop Thumbnail Managing Standard and implements advanced file type detection using Gio and custom mimetypes

🐧 Notable Open Source Contributions

Fedora Project (Contributor, FAS: mateusrodcosta) | Feb 2021 - Present

  • Packager: Packager and maintainer for the official Fedora/RHEL repositories, ensuring compliance with strict packaging guidelines (currently focusing on the bign-handheld-thumbnailer package)
  • Technical Writer: Regular writer for Fedora Magazine, producing in-depth technical writeups and tutorials. Check out my list of published articles
  • Fedora Docs: Contributor to the official system documentation

Pinned Loading

  1. SaveLocally SaveLocally Public

    Save files locally via the share menu

    Kotlin 243 11

  2. vidya_music vidya_music Public archive

    [DEPRECATED] [Flutter] Player for the Vidya Intarweb Playlist (aka VIP Aersia)

    Dart 12 1

  3. gnome-shell-extension-default-workspace gnome-shell-extension-default-workspace Public

    A gnome-shell extension that switches to the specified workspace on login.

    JavaScript 4 2

  4. bign-handheld-thumbnailer bign-handheld-thumbnailer Public

    Thumbnailer for Nintendo handheld game consoles (DS and 3DS) roms and homebrew

    Rust 24 2

  5. My personal Picard naming script, ... My personal Picard naming script, focuses mainly on soundtracks but has decent support for non-soundtrack albums. Includes very good multi-disc support.
    1 
    title: MateusRodCosta's Picard Naming Script
    2 
    description: |
    3 
      My personal Picard naming script, focuses mainly on soundtracks but has decent support for non-soundtrack albums. Includes very good multi-disc support.
    4 
      AI usage disclaimer: this script implements Gemini suggestions to better achieve its goal and valid the script logic.
    5 
    author: Mateus Rodrigues Costa (MateusRodCosta)