Thanks to great work by @weepingclown we have finally updated diaspora-installer package in #debian unstable and it is ready for bookworm-backports once it migrates to testing.
There were many challenges to get it working with ruby 3.1 in debian bookworm and sid, but he solved these issues patiently one after the other. This was the bug he fixed https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1006547
and list of things he did https://tracker.debian.org/news/1494486/accepted-diaspora-installer-07182debian-source-into-experimental/