AdvMenuPLUS is a frontend based on AdvanceMENU (original by Andrea Mazzoleni http://advancemame.sourceforge.net/index.html) that supports layouts among other things.
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.