I was recently brainstorming with the idea of potentially taking the DaedalusX64-3DS port and modifying it to a forwarder format where you can load ROMs on startup (similar to RetroArch or other forwarders in NSUI), however the emulator itself has not been updated since 2022.
To that end, I had already produced a concept banner model on Blender; the N64 model used is from StreetPass Mii Plaza. still have no idea how to export its animation properly tho...