Core Updates Summary and more Switch updates - October 2018 - RetroArch Switch NSP, Mupen64plus Switch (experimental), Mr. Boom, Game & Watch, Reicast improvements for PC/Android/ARM, Dosbox SVN for Windows/Linux/Android 32bit, and
Switch – Libretro
Retroarch WiiU (wip.) | Page 693 | GBAtemp.net - The Independent Video Game Community
RetroArch - Emulation on Nintendo Wii U - CFWaifu
Input and Controls - Libretro Docs
Wii U Nightly Discussion Thread - Nintendo consoles - Libretro Forums