How to specify notebook folder on desktop (linux - App image)

Hi, I just got the linux app image working, but when I go to general options, there’s no option to change the folder where the notes are stored.

Is this something I can change?

Have you tried the --profile flag, as mentioned e.g. here?

https://discourse.joplin.cozic.net/t/is-there-any-way-to-use-as-a-portable-app/35/3?u=zblesk

(Sorry, I haven't tried the Linux version myself.)