jj is in practice a wrapper around Git

it is built, though, that the Git backend can be swapped for another backend.

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?

> There is currently only one production-ready builtin commit backend: the Git backend. <omitted> Google also has its own cloud-based backend.

https://docs.jj-vcs.dev/latest/glossary/?utm_source=chatgpt....