deb     http://deb.debian.org/debian               bullseye          main contrib non-free
deb-src http://deb.debian.org/debian               bullseye          main contrib non-free

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

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