#main
deb http://ftp.ru.debian.org/debian/ buster main contrib non-free
deb-src http://ftp.ru.debian.org/debian/ buster main contrib non-free
deb http://ftp.ru.debian.org/debian/ buster-updates main contrib non-free
deb-src http://ftp.ru.debian.org/debian/ buster-updates main contrib non-free
deb http://ftp.ru.debian.org/debian/ buster-proposed-updates main contrib non-free
deb-src http://ftp.ru.debian.org/debian/ buster-proposed-updates main contrib non-free

#multimedia
deb http://ftp.ru.debian.org/debian-multimedia/ buster main non-free
deb-src http://ftp.ru.debian.org/debian-multimedia/ buster main non-free
deb http://ftp.ru.debian.org/debian-multimedia/ buster-backports main
deb-src http://ftp.ru.debian.org/debian-multimedia/ buster-backports main

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