Ubuntu autoinstall.yaml

[Idkingz]

I love my Ubuntu with Omakub! So would be nice to have a Omakub installation command with all the options as args to avoid the prompts during the installation. That way I can add the Omakub installation command to my Ubuntu's autoinstall.yaml.

[dhh]

All the options are now being asked up front, so I don't think parameterizing those will be any easier/faster. And then we have to document that.

Because we can't, unfortunately, escape the Gnome Extension prompts when those are installed later. So it'll never be entirely "no hands".