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

# bookworm-updates, previously known as 'volatile'
deb http://deb.debian.org/debian bookworm-updates main contrib non-free-firmware non-free

# bookworm-backports, previously on backports.debian.org
deb http://deb.debian.org/debian bookworm-backports main contrib non-free-firmware non-free