cat /etc/apt/sources.list
deb http://deb.debian.org/debian bookworm main non-free-firmware contrib non-free
deb-src http://deb.debian.org/debian bookworm main non-free-firmware contrib non-free

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

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