Github was good while it lasted. Back to SourceForge.
Then if SF goes down we'll go back to emails & patches. Issues will be tracked with post-its & todo lists and communicated by voice.
It's not fossil-scm, but git-appraise restores some of the lost distributed'ness:
https://github.com/google/git-appraise
https://github.com/google/git-appraise-web
https://github.com/Nemo157/git-appraise-rs
And there's also http://jk.ozlabs.org/projects/patchwork/ (http://patchwork.ozlabs.org/project/qemu-devel/list/).