Debian has preseed capability which may be what you'll need. I've never
used preseed but it has been discussed on debian-user several years ago
and is probably on the debian wiki somewhere.
On Tue, 14 Apr 2020, Egon wrote:
> Date: Mon, 13 Apr 2020 23:54:45
> From: Egon
> To: debian-accessibility@lists.debian.org
> Subject: Debian Live DVD Orca autostart
> Resent-Date: Tue, 14 Apr 2020 03:55:02 + (UTC)
> Resent-From: debian-accessibility@lists.debian.org
>
> Hi,
>
> I downloaded the following Debian Live DVD image:
> debian-live-10.3.0-amd64-mate.iso
> I want to modify the image to enable all accessibility features. I
> want to start Orca at boot automatically. I can modify the image from
> an already installed system. I can extract filesystem.squashfs from
> the live DVD image. What do I modify to enable and start Orca? I do
> not want to install the Live DVD, I want to make "my own" live DVD
> with my own programs to use it any computer.
> I read the following on Debian Accessibility Wiki to enable Orca autostart:
>
> eval $(dbus-launch); export DBUS_SESSION_BUS_ADDRESS DBUS_SESSION_BUS_PID
> GSETTINGS_BACKEND=dconf gsettings set
> org.gnome.desktop.a11y.applications screen-reader-enabled true
> GSETTINGS_BACKEND=dconf gsettings set org.mate.interface accessibility true
> GSETTINGS_BACKEND=dconf gsettings set org.mate.applications-at-visual
> startup true
>
> It does not operate inside a chroot environment. Can I put somewhere
> this script to run it at boot? Simplest way to edit any config file to
> enable this feature but I unable to find a method to do it. I am total
> blind, I need only orca, I do not need contrast theme or other.
>
> Best regards: Egon
>
>
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