aria2
Homepage: https://github.com/aria2/aria2
aria2 is a lightweight multi-protocol & multi-source, cross platform download utility operated in command-line. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink.
Usage
Set aria2_enabled: true
in your inventories/<your_inventory>/group_vars/nas.yml
file.
aria2 web interface can be found at http://ansible_nas_host_or_ip:6880.