Citra Web Service - What are and how to use web services tokens.User Directory - Explanation of Citra’s file structure.If you have any questions about Citra, first check these pages: You can find a reference for Citra’s default keyboard bindings here: Dumping Config Savegame from a 3DS Console.Dumping System Archives and the Shared Fonts from a 3DS Console.In order to make some games work, you’ll have to dump some system files from your 3DS. If you have updates or DLCs on your 3DS that you want to use with Citra, you’ll have to dump them as well. If you have any save files or extra data on your 3DS that you want to import into Citra, you’ll have to dump them as well. Now, you’ll need to dump the games you want to play with your 3DS.
If you are having trouble building Citra from the source code, see this wiki page: Please upgrade your system if you are on a lower version (or grab dependencies somewhere else if you know how to) To Ubuntu users: only 18.04 and up provides sufficient dependencies to build Citra.