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 <cvimai...@gmail.com> > To: debian-accessibility@lists.debian.org > Subject: Debian Live DVD Orca autostart > Resent-Date: Tue, 14 Apr 2020 03:55:02 +0000 (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 > > --
