// Do not consider recommended packages as a dependency for installing.
APT::Install-Recommends "no";
// Never include phased updates.
APT::Get::Never-Include-Phased-Updates "yes";
// Packages that are locally installed are excluded from cleaning.
APT::Clean-Installed "no";
// Keep packages that are successfully installed by apt(8) specifically.
Binary::apt::APT::Keep-Downloaded-Packages "yes";