deb http://ftp.de.debian.org/debian/ bookworm main contrib non-free-firmware
deb-src http://ftp.de.debian.org/debian/ bookworm main contrib non-free-firmware

deb http://ftp.de.debian.org/debian/ bookworm-updates main contrib non-free-firmware
deb-src http://ftp.de.debian.org/debian/ bookworm-updates main contrib non-free-firmware

deb http://ftp.de.debian.org/debian-security bookworm-security main contrib
deb-src http://ftp.de.debian.org/debian-security bookworm-security main contrib

deb http://ftp.de.debian.org/debian bookworm-backports main
deb-src http://ftp.de.debian.org/debian bookworm-backports main