Hi,
Since the 0.0.20180724 Android client version addition of vpn configurations via qr code is possible.
There is a package named qrencode that can be used to generate qr code from a config file even in terminal using utf8 characters. I succesfully imported a wireguard config from my headless Debian router via ssh directly from a terminal with the following command:
cat profile.conf | qrencode -t UTF8 -o -
Maybe this can be added to the wiki since it can be very useful for securely distributing vpn configs.
Regards,
Kertesz Laszlo