Hi Sandro, I've been using diamond internally for a while now and have a good understanding of how it hangs together. I've also been making contributions to the code on the Github project.
Also, as far as I can see, a Subversion source repository is being used, but I believe this will have to be converted to git very soon as Alioth is being deprecated (based on details at https://wiki.debian.org/Alioth#Deprecation_of_Alioth). This is something that I'm interested in doing. So in summary, I'd be happy to adopt this package. I should also mention that bl...@debian.org is willing to sponsor the uploads. If there are any further details you need from me, let me know. Thanks, David