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