- Does backup old sources files for easy restoring
- Does backup old sources files for easy restoring
- Supports mirror lists for allowing fallback to direct connection (see [`man apt-transport-mirror`](https://manpages.debian.org/buster/apt/apt-transport-mirror.1.en.html))
- Supports mirror lists for allowing fallback to direct connection (see [`man apt-transport-mirror`](https://manpages.debian.org/buster/apt/apt-transport-mirror.1.en.html))
(**WARNING**: This feature is not considered stable, please use with caution)