Thanks to the hard work of the RetroNX devs (natinusala and m4xw), we now have an official RetroArch release for Switch!
This might just be the single biggest platform release at launch for a new platform ever for RetroArch! Right from day one, they are starting out of the gates on the Switch with over 44 libretro cores! You can download RetroArch for Switch here.
OFFICIAL SOURCE: --> https://www.libretro.com/index.php/retroarch-1-7-5-introducing-libnx-switch-version/