I also had a look at https://feddit.org/c/main but my German is very basic, the most interesting topic seems to be a tutorial on how to migrate accounts from feddit.de to feddit.org
There's two actually. The second one hopped on board shortly before the first one went to Asia on some work (IIRC).
And the second one has trouble with the SSH-key and a case of RL-stuff going on.