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