@balaton
Quote:
So best is to use a config file in the guest
Not possible, the gfx drivers are started before DOS, most Kickstart modules can't do any stdio.
For example that's the reasons debug output of the kernel, and nearly all other Kickstart modules, is done using serial output instead, and not written in a debug log file.
The easiest way is using an U-Boot variable, and for QEmu it would be best it the defaults you are using for the AmigaOne emulation would be stored in an editable config file.