FWIW, When you first setup HA it includes that scripts file. My system has that… actually I think it also includes a blank scripts file so it does exist unless he has deleted it.
I’m so happy to report that all the initial problems are solved.
I did a fresh install. Again.
The 0.0.0.0 binding problems were resolved when I added '-broker: “localhost” ’ to the mqtt configurator.
After installation the scripts.yaml file was there, but empty.
The known_devices.yaml file was absent.
BTW the examples for the built-in mqtt broker show a password without quotes. My config uses quotes and do not generate errors (anymore).
Thank you all for your contribution.
pablok