Don't know about formal terms like "end of service". But technically it is heavily outdated: it is based on obsolete JavaScript libraries Prototype (last version in 2015) and Scriptaculous (last version in 2010), In order to become actual again it requires serious rewriting (migration from Prototype to jQuery or even to vanilla JavaScript). I have no free time to make this. If anyone wants - you are welcome.
To find projects on GitHub you could use its search: https://github.com/search?q...
To find projects on GitHub yuo could use its search: https://github.com/search?q...