Supercart is a lightweight shopping cart system. It allows the use of external product links or the use of supercart's database. It is completely template-driven. Multiple payment gateways are supported.
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.