MinUi is a lightweight Custom Firmware, developed by Shauninman, with a low impact on the graphical environment, fast and easy to use without having to make adjustments here or there, since it comes preconfigured to use with most emulators available. It is focused more on the emulation of portable consoles, and some Arcade emulators and the possibility of playing Ports are missing, but some developers are already creating Mods and Applications to complement this great Custom Firmware. For RG35XX+ and RG35XX H it’s not ready!!
You can see more information and download the latest version from its official page.