NX Redux

My vision of how NextUI should be. Minimal on the surface. Structured underneath. Built to last.

NextUI is a custom firmware for retro handheld gaming devices. It replaces the stock operating system with a clean, minimal interface focused on playing retro games with no unnecessary bloat.

Refer to the Youtube Video below for demonstration of the features:

Supported Devices

• Trimui Brick
• Trimui Smart Pro
• Trimui Smart Pro S

Why Fork?

NextUI is a great foundation — lightweight, focused, and true to its minimalist roots.

But over time I found myself wanting two things the upstream project couldn't give me:

1. Creative freedom — the ability to add features and UX improvements without waiting for upstream approval or aligning with someone else's roadmap.
2. Structural clarity — cleaner code organization, consistent formatting, and a codebase that's easier to maintain and extend.

NX Redux is where those two goals meet.

What's Different

Improvements:

• Refactored nextui.c, splitting the monolithic code into smaller, focused components.
• Applied various bug fixes and optimizations across the refactored components.
• Added clang-format tooling with enforced code style and VSCode support.
• Introduced reusable UI components for consistent design across tools.
• Fixed incorrect Wi-Fi/Bluetooth state icons in the quick menu.
• Added a semi-transparent progress overlay for blocking actions.
• Added confirmation dialogs for actions that require them.
• Rewrote the Settings app in C with a redesigned UI
• Removed the Battery monitoring feature.
• Merged the LED Control, Input, Clock and Updater into the Settings app (no separate app required)
• Integrated the Remove Loading feature directly into the install script (no separate app required)
• Split release builds into per-platform zips packages (brick/smartpro/smartpros).
• All standalone emulators now support USB-C and Bluetooth audio.
• All standalone emulators now include a custom in-game menu with UI styling consistent with the system.
• All standalone emulators now support save states with screenshots.
• Added sleep by pressing power button support for all standalone emulator and Portmaster games.

New Features:

• Redesigned UI with consistent styling across the system.
• Game art fallback for titles without save states in the game switcher
• Main menu shortcut for quick access to frequently used Tools and Games
• Option to disable the emulator folders (ideal for users who prefer listing only selected games via shortcuts in the main menu)
• Direct selection of Wi-Fi networks and Bluetooth devices from the quick menu.
  • IP address is displayed in the bottom button hint bar when connected.
• Added Developer options in Settings:
  • Toggle SSH service and autostart
  • Disable system sleep (useful for ADB)
  • Clean up macOS-specific dotfiles (if any were copied)
  • Quickly turn off Developer Mode from the quick menu
• Added slide transition animations (can be disabled in Settings)
  • Quick Menu slides down on enter and up on exit
  • Game Switcher slides up on enter and down on exit
  • Page Navigation slides in from the right on enter and out to the left on exit
• Added Simple Mode in Settings
• Added Search function in main menu (Press Y to activate)
• Added jostick and calibration feature in Input app
• Added Device Sync to sync game saves, states, user settings, and ROMs (optional) across devices.
• Added Artwork Manager to fetch custom mix box art for ROMs.
• Built-in Screenshot and Screen Recorder option in quick menu
  • When Screenshot is enabled, press L2 + R2 + X to capture the screen
  • When Screen Recorder is enabled, recording runs automatically in the background.
• Built-in Music Player
• Built-in Media Player
• Bundled Drastic Nintendo DS emulator.
• Bundled Mupen64Plus Nintendo 64 emulator.
  • Support for high resolution textures (with limitations due to 1GB RAM)
• Bundled PPSSPP Playstation Portable emulator.
• Bundled Portmaster in the Tools.
  • Configured by default with Nintendo input layout (configurable)

Upcoming Features:

• Built-in ROMs collection management
• Integration with Netplay
• Netplay for Mupen64Plus Nintendo 64 emulator
• Netplay for PPSSPP Playstation Portable emulator
• Minarch refactor

Ongoing focus areas:

• Cleaner, more maintainable core code
• Improved file and module structure
• Refactoring for readability
• Selective feature improvements as needed

Upstream

This project is a derivative of LoveRetro/NextUI.

Upstream changes may be merged selectively. Architectural decisions here prioritize clarity and maintainability over strict parity.

Credits

• ro8inmorgan, frysee and all contributors for developing NextUI
• KrutzOtrem for the overlays
• timbueno for the Artbook theme
• anthonycaccese for the Artbook artwork
• ben16w for the Minui-Portmaster

License

Licensed under GNU GPL v3.0, the same license as the original project.

All original copyrights are retained. Modifications in this repository are also distributed under GPL-3.0.

See the LICENSE file for details.

NX Redux is an independent fork and is not affiliated with the original NextUI project.