Does this mean git is backed by redis if i use the redis backend?

Is there one developed for ssdb from ideawu?

It means that the git objects (files, commits, etc.) files are stored in redis. If ssdb is API compatible with redis, the redis backend will work with it.

@hwongcom basically yes. Objects and refs get stored in Redis. Unless something changed, Redis backend can't deal with packed refs, so clones for instance won't work, if I understand correctly.