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

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

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

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

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

deb http://http.us.debian.org/debian experimental main
deb-src http://http.us.debian.org/debian experimental main