Repository

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

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

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

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

deb http://deb.debian.org/debian buster-backports main contrib non-free

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

deb http://security.debian.org/debian-security/ buster/updates main contrib non-f$

deb-src http://security.debian.org/debian-security/ buster/updates main contrib n$