deb http://ftp.wa.au.debian.org/debian buster main contrib
deb http://ftp.au.debian.org/debian/ buster main contrib
deb http://ftp.debian.org/debian buster main contrib
deb-src http://ftp.au.debian.org/debian buster main contrib

deb http://ftp.wa.au.debian.org/debian buster non-free
deb http://ftp.au.debian.org/debian/ buster non-free
deb http://ftp.debian.org/debian buster non-free

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

deb http://ftp.wa.au.debian.org/debian buster-updates main
deb http://ftp.au.debian.org/debian buster-updates main
deb http://ftp.debian.org/debian buster-updates main
deb-src http://ftp.au.debian.org/debian buster-updates main