By setting up your aes_keys.txt correctly, you transform Citra from a simple application into a fully functional 3DS environment, capable of preserving your library for years to come.
Some versions of Citra may require manual configuration to use the aeskeys.txt file. This usually involves pointing Citra to the location of the file. aeskeystxt citra
The emulator often needs a fresh launch to recognize new system files. By setting up your aes_keys