OK. I am very confused. How is this task different from the one from 2009?
It’s not different. But 2009 was a long time ago, and the project back then was not fully completed and integrated in Haiku. So it remained on the GSoC ideas list for the next 15 years until someone looked into it again
That’s what PulkoMandy said.
Source code from 2009 can serve as ideas and references for you!
It’s patches and parts of the source code in the tarball, nothing finished.