Also-see: https://lists.altlinux.org/pipermail/devel-distro/2021-March/002258.html

Fix framebuffer in kernel rpi-un 5.10.20-alt1.

This is base target, drm not needed.

The default is NetworkManager (etcnet), so need select NetworkManager
(native) mode.

NetworkManager (etcnet) is default now.

NM_CONTROLLED should always be set together with DISABLED;
otherwise, it's possible to reach the state where
DISABLED=no but NM_CONTROLLED=yes, and have the interface
controlled by both NM and etcnet.

firefox not availability for armh and mipsel.

Suggested by mike@.

Firefox-esr segfaults on Rpi3 for unknown reason.

Suggested by iv@: rpcbind is not needed in SL.

It is pulled by use/oem/distro target.

This package for installer only, don't use it on vm/*.
Just explicitly add installer-features, which can be used with
rootfs-installer-features.
This reverts commit 991a0a35.

They are provided by firefox-esr itself now.

installer-common-stage3 configures network. Without it,
net-eth step of the OEM setup does not work properly.

installer-distro-simply-linux-stage3 installs the required
installer-features.

Current un-def kernel (5.10.x) should be std-def at the time
of SL-9.1 release.

Fixes audio on mainline kernel.
See-also: https://forum.manjaro.org/t/rpi4-a-v-jack-missing-when-using-vc4-driver-kms/50948/19

Booting to Raspberry Pi 4 is not possible with these parameter.

xfce-screensaver has no problems only on x86. mipsel is no exception.

xfce4-screensaver does not work on Tavolga and on
BFK3 with SM750 videocard (see alt#38418). While
upstream does not response to the ticket, we have
to switch to something else.

It's useless for our mipsel images. The office software
from our mipsel repositories doesn't use Java -- even
LibreOffice is built without Java support.

use/oem/distro contains additional steps for executing preinstall
scripts and network configuration.

beesu is a graphical interface for 'su' that can be used
by xdg-su. Without beesu and gksu, xdg-su resorts to asking
root password in xterm, which looks awful.

Otherwise, ssmtpd finds its way into alt-workstation-tavolga
as /usr/sbin/sendmail provider (required by lsb-core).

... instead of adding it manually. This not only reuses
existing code, but also add chrony into PINNED_PACKAGES,
which avoids having systemd-timesynd in the final image.

projectlibre is too slow on Baikal-T.

libreoffice-languagetool is not available on mipsel.

It's now uses just gtk3 and is available on most of the platforms.