cat /etc/apt/sources.list

deb http://mirrors.aliyun.com/debian/ bookworm main contrib non-free non-free-firmware
deb-src http://mirrors.aliyun.com/debian/ bookworm main contrib non-free non-free-firmware
deb http://mirrors.aliyun.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb-src http://mirrors.aliyun.com/debian-security/ bookworm-security main contrib non-free non-free-firmware
deb http://mirrors.aliyun.com/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src http://mirrors.aliyun.com/debian/ bookworm-updates main contrib non-free non-free-firmware
deb http://mirrors.aliyun.com/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src http://mirrors.aliyun.com/debian/ bookworm-backports main contrib non-free non-free-firmware