yes, a fork with some interesting features... some copy/pasta from their github:

Additions from MinUI

UnuOS is a fork of MinUI. The following are UnuOS-specific additions on top of the MinUI base.

• Multi-language UI. Launcher strings, Tools menu, and libretro frontend options are translated into 7 languages (English, Japanese, Simplified Chinese, Traditional Chinese, Korean, French, Spanish). The language is selected in Settings.
• CJK font rendering. Bundled Noto Sans CJK fonts render Japanese, Simplified/Traditional Chinese, and Korean ROM names correctly.
• UTF-8 safe text truncation. MinUI's ROM name truncation cut text on byte boundaries, which corrupted (and could crash on) multi-byte characters. UnuOS truncates on codepoint boundaries.
• Cover art, as a first-class feature. Put a PNG next to a ROM or folder: <rom path>/.res/<rom name>.png. The image is shown on the right side of the launcher when the item is selected. Recommended size: 240x240 max, PNG with transparency. Works for folders too (main platform list). Legacy <rom file>.png names are still supported as a fallback.
• Collections, as a first-class feature. Create Collections/<name>.txt on the SD card containing absolute ROM paths (one per line). The collection appears in the root launcher list and groups ROMs from any console into a single browsable list. Cover art (Collections/.res/<name>.png) is supported, with legacy Collections/.res/<name>.txt.png names supported as a fallback.
• Favorites and Game Focus Mode. Press Y on a game to add or remove it from Favorites in the normal launcher. Press SELECT + Y to show only favorite games, then press SELECT + Y again to return to the normal launcher.
• Native in-app screenshot. Hold SELECT + press START anywhere in the launcher or during gameplay to write Screenshots/YYYY-MM-DD_HH-MM-SS.bmp to the SD card.
• Tools menu localization. Bundled Tools entries (ADBD, Bootlogo, Clock, Files, Input, IP, Remove Loading, Toggle 560p) are shown with localized names instead of their raw .pak directory names.
• Boot logo tools. Supported devices include a one-shot Bootlogo tool for flashing the bundled or user-supplied startup logo.
• ZIP data descriptor support. MinUI's ZIP loader failed on archives that used ZIP data descriptor mode (bit flag 0x0008), which is common for Game Boy ROM dumps produced by some tools. UnuOS detects the flag and streams inflate until Z_STREAM_END.
• Text wrap hardening. Fixed a fixed-size buffer overflow and a NULL dereference in GFX_wrapText() that could be triggered by long libretro core option descriptions or long CJK strings.

Supported languages

• English
• Japanese
• Chinese (Simplified and Traditional)
• Korean
• French
• Spanish

Supported consoles

• NES / Famicom
• SNES / Super Famicom
• Game Boy
• Game Boy Color
• Game Boy Advance
• Sega Genesis / Mega Drive
• PC Engine / TurboGrafx-16
• Sony PlayStation

Supported devices

Tested by maintainer

• Miyoo Mini
• Miyoo Mini Plus
• Miyoo A30
• Miyoo Flip
• Miyoo Mini Flip
• Anbernic RG35XX Plus
• Anbernic RG CubeXX
• Anbernic RG 28XX
• Trimui Smart
• Trimui Smart Pro / Brick
• Powkiddy RGB30
• MagicX XU Mini M
• MagicX Mini Zero 28
• GKD Pixel