The Funkwhale music platform is alive and in active development, and they’re working on a feature to filter far-right artists off the network. Some Fediverse self-hosters are divided on letting a third party decide what should be allowed in their library.
I’m sure people are still free to take the code and make the necessary adjustments if they really need to host a Nazi-friendly instance.
A fork is desirable. Then we can have antifa hacktivists contributing to that source with malware to scare them out of their dumb political views.