deRSS parses RSS 2.0 feeds and downloads files referenced in <enclosure url=""/> or (if not present) <link> elements. To avoid downloading files twice, deRSS stores the publication date of the newest downloaded file. deRSS works nicely with cron.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.