The way it works usually is that you place both the downloaded app and the generated config file in the same directory. When starting the client app for the first time, it scans the current directory for the config file and then copies itself and the config file into the user home directory, such as:
But when running on MacOS ARM, there is probably a compatability layer in between, so I am not sure how this will behave.
If you can find the
.r3/ folder in your home directory, it should contain both the app and the config file - if not, copy both into it and see if it runs.
I do not have an ARM MacOS system at my disposal so I cannot test this out, sorry.