Howto debian12

enable sudo

login as root:

su -

add your user to sudo group:

gpasswd -a user sudo

update system

update your system to latest:

sudo apt update && sudo apt -y upgrade

non-free repos

login as root:

sudo su -

configure non-free repos:

cat >> /etc/apt/sources.list << EOF
deb http://deb.debian.org/debian bookworm non-free non-free-firmware
deb-src http://deb.debian.org/debian bookworm non-free non-free-firmware

deb http://deb.debian.org/debian-security bookworm-security non-free non-free-firmware
deb-src http://deb.debian.org/debian-security bookworm-security non-free non-free-firmware

deb http://deb.debian.org/debian bookworm-updates non-free non-free-firmware
deb-src http://deb.debian.org/debian bookworm-updates non-free non-free-firmware
EOF

update repos:

apt update

flatpak

enable flatpak:

sudo apt update && apt sudo -y instal flatpak

configure gnome software flatpak plugin:

sudo -y apt install gnome-software-plugin-flatpak

enable flatpak repo:

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

more on flatpak commands:

https://wiki.vidalinux.org/index.php/Howto_flatpak

dev tools

install developer essentials tools:

sudo apt -y install build-essential

gnome extensions

install gnome extensions manager:

sudo apt -y install gnome-shell-extension-manager