TIL Wii64 Rice works as a Wiiflow plugin. I had no idea!
One recommendation for the plugin pack: both Wii64 plugins are currently configured in their respective inis to look in not64/roms for their roms, the hardcoded directory which the not64 plugin uses. I recommend changing that so that Wii64 rice uses a different folder.
N64 emulation on Wii is a special case - for certain games we want to use certain emulators. And for anyone who configured their Wiiflow source menu like I did, with multiple magic numbers in the same button, the only way for Not64 and Wii64 to not step on each others' toes for their respective game lists is for them to be configured to look in different folders for their segregated, respective games.
I'm still testing, but so far I had no trouble changing the Wii64 games directory to wii64/roms, currently alongside the Not64 plugin looking in not64/roms.
I haven't gotten the RiceVideoLinux.ini working to my satisfaction yet (testing with Shadows of the Empire, and the purported ScreenUpdateSetting=4 isnt fixing the flickering menu - gameplay looks fine though), but I'm happy to upload my files once I'm satisfied.