lmxia

FIRST OFF:

You need prod.keys and firmware files. For legal reasons, I cannot provide them to you. Likewise, you'll have to find the NSP yourself. This thread will only teach you how to use Ryujinx.

Then, you need an emulator! (it's safe to share i assume)

https://git.ryujinx.app/Ryubing/Canary/releases/tag/1.3.269

From the comments, the 1.3.269 build is iffy so try the 1.3.268 build first. I didn't have any problems with that build though so idk

When first launching Ryujinx, you'll stumble on this error that the "keys were not found". It's normal. It does not come with the emulator.

To install the keys, go on Actions and install the keys from here. Do the same for the Firmware.

Then add your Tomodachi Life NSP file into a folder (preferably not in root). Then, from the settings, in Game Directories, add the folder where the NSP is in (from "Add" or by pasting the path name).

(mine is called New Folder because I was too lazy to rename it)

If everything is done correctly, TL should appear on Ryujinx! If not, it's likely because it's in the wrong directory or you forgot to extract the NSP from the zip/7z.

Finally, run the game to see if everything works correctly! (Don't forget to set up your inputs through settings or else you won't be able to do anything.)

If there's lags, graphical issues, etc... I suggest meddling with the settings.