alt Hacker News> jj is in practice a wrapper around Git
No, git-branchless is a wrapper around Git. jj is an independent source control system with git compatibility. jj can, and does, function entirely without git.
> I'm not sure where you're getting two production backends from. I guess you're referring to the Google internal one that nobody can use?
Lots of people within Google use it!
Yes, if you are lucky enough to work at Google you don't need Git to use jj. Most people do not work at Google.
If you work at Google, jj can and does function without Git.
If you do not work at Google, jj is a Git wrapper.