Lakka is a Linux distribution aimed at turning small computer devices into
retrogaming consoles. It is a minimal operating system using
RetroArch as a front-end - it contains nothing more, nothing less than what's required for RetroArch and its
100+ supported consoles and standalone games.
And guess what - it runs on the Switch too, using the magic of
ShofEL2 ! Prepare your SD card, boot the system and you're ready to go !
You can find everything needed on this website :
https://lakka-switch.github.io/documentation/
I suggest you read the FAQ as it already covers common issues and questions. The official Lakka documentation can also help.
The system is not perfect yet, some issues are still present (audio through Bluetooth, wifi only working after a reboot...). However, it is playable and I feel like it's ready for a (first) release. If you want to contribute, don't hesitate to make a PR or message me directly !
If you want to talk or follow the developpement of RetroArch on the Switch (both homebrew and Lakka), feel free to join this Discord server :
https://discord.gg/VZDWqXU
Enjoy