nach der Debian Installation

su -

usermod -aG sudo deinname
Überprüfe, ob der neue Debian sudo-Benutzer mit dem Befehl zur Gruppe hinzugefügt wurde.

getent group sudo

sudo apt install flatpak

sudo apt install gnome-software-plugin-flatpak

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

sudo apt install snapd
sudo snap install core
sudo snap install snap-store

sudo nano /etc/apt/sources.list

Hinzufügen der non-free und non-free-firmware Repositories:

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

deb https://www.deb-multimedia.org bookworm main non-free



wget https://www.deb-multimedia.org/pool/main/d/deb-multimedia-keyring/deb-multimedia-keyring_2016.8.1_all.deb

sudo dpkg -i deb-multimedia-keyring_2016.8.1_all.deb

apt-get update