# cat /etc/apt/sources.list

# deb cdrom:[Debian GNU/Linux 12.4.0 _Bookworm_ - Official amd64 DVD Binary-1 with firmware 20231210-17:57]/ bookworm main non-free-firmware


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