Mateus Rodrigues Costa MateusRodCosta

Hello 👋, I'm Mateus!

Hi, my name is Mateus Rodrigues Costa 🫡, aka MateusRodCosta. On some gaming-related contexts, I tend to prefer using Matias as a nickname.

👤 I'm a 🇧🇷 Brazilian 👨‍💻 Programmer currently focusing on 📱 mobile apps development. I have the most experience with Flutter (using Dart) but I also have been investing some time in learning Jetpack Compose (using Kotlin).
In Flutter, for state management, I'm most skilled with Provider for simple use cases and BLoC for more complex scenarios.

⭐ Save Locally - a small utility made with Jetpack Compose that helps going from a shared file via the Android share system to saving it via the system native file picker
⭐ Vidya Music - a Flutter-based player for VIP Aersia, a very popular video game music playlist that has been on the web for more than 16 years.

I am currently author or maintainer of the following projects:

📱 Mobile Apps:
- Save Locally (Jetpack Compose , Android ) (Google Play , F-Droid ) - Using an app that doesn't allow Saving but allows Sharing? No problem!
- Vidya Music (Flutter , Android ) (Google Play , F-Droid ) - A player for the Vidya Intarweb Playlist (aka VIP Aersia)
🖥️ Desktop Apps:
- Stereotyping (GTK + Rust , Linux ) (ON HOLD) - A GTK4 front-end to libmagic
⚙️ Miscellaneous projects:
- Default Workspace (GNOME Extensions ) - Switches to the specified workspace on login
- 🖼️ bign-handheld-thumbnailer(Rust , Linux ) - A thumbnailer for Nintendo handheld systems (Nintendo DS and 3DS) roms and files
📦 Packaging:
- ChibiTracker (manifest) (Flathub ) - ChibiTracker is a portable IT (Impulse Tracker) clone
- Digital: A Love Story (manifest) (Flathub ) - A computer mystery/romance set five minutes into the future of 1988
- don't take it personally, babe, it just ain't your story (manifest) (Flathub ) - A spiritual sequel of sorts to Digital: A Love Story, set in a prestigious private high school, and on the social networks of 2027

Fedora Linux Contributor since 2021.
- ✒️ Fedora Magazine writer since 2021 (some of my articles) - I usually write about Fedora Atomic Desktops and sometimes technical tutorials.
- 📦 Fedora packager since 2025 - Currently packaging bign-handheld-thumbnailer and bbox-firago-fonts.
🗃️ Shockwave and Flash Archivist
- 🗃️ Due to the death of Flash and the discontinuation of the Cartoon Network websites (now redirects to the Max streaming service in many countries), I have been slowly archiving the Brazilian variants of old Cartoon Network games (mainly Shockwave and Flash formats) into Flashpoint
- 🗃️ As a side effect I have helped on adding the pt-BR versions (including creating the lost translations) into the web ports of the Cartoon Cartoon Summer Resort and Scooby Doo Hollywood Horror games. (Hosted version)