RMG v0.03 is released. Rosalie's Mupen GUI is a free and open-source mupen64plus GUI written in C++. It offers a simple-to-use user interface.

RMG changelog:
Rosalie Wanders (11):
ci: change artifacts (a final time)
cmake: use 'git rev-parse --short HEAD'
Installer: change OutputBaseFilename
SettingsDialog: redesign with tabs
SettingsDialog: remove on_treeWidget_currentItemChanged
SettingsDialog: rename tab widgets
SettingsDialog: more UI adjustments
KeyBindButton: set text on keyReleaseEvent
SettingsDialog: remove QScrollArea in directoriesTab
SettingsDialog: misc style changes
SettingsDialog: correct widget order of game settings

Download: RMG v0.03
Source:Here