[deleted] this means that StarsRiver forked (made a copy) of the code that @arektekieli maintains. Usually these forks happen when an extension is no longer maintained and the new author has an interest in reviving it.
In this case I am not sure as StarsRiver released a v1.0 after @arektekieli did.
Aside from readme changes I see no apparent other differences. It usually is smirked upon in open source for identical packages to show up, because that simply scatters available development.