Image to QR code from assets

[Antronin]

Is it possible to add the content of the additional parameter image from assets?
Right now, it seems to me that I need an external service that I can reference by a URL to download the image. But is there any way to use an image I already host in my assets?
The asset's filename is not constant because a random cache handler string is appended to it. Now, how can I reference that filename in the config, or add this parameter to the config from code later?

[scheb]

It should be possible to have a compiler pass, to either change the config itself or the resulting config parameter scheb_two_factor.totp.parameters.