I like to compare Google and jj to Mozilla and Rust: Google employed Martin and some other maintainers, but it's always been an OSS project under the Apache 2.0 license.
That being said, there's a few things that lead to this perception: the first is that it used to be under Google's GitHub account, but is now under its own org. The second is that contributing to jj does require signing Google's CLA. That is something that is desired to change, but that's up to Google. Due to the license, the community could fork it, and still have the rights to use the code, but that would be pretty aggressive, and so everyone involved would rather work together on this than do so. The move to its own GitHub org was one example of movement in that direction, but I'm not aware of an actual timeline to remove the CLA just yet. The project will figure it out over time.
(I have a commit bit but am not a jj maintainer, so the above is my own impression from being involved in the community for the past few years.)
alt Hacker News
I like to compare Google and jj to Mozilla and Rust: Google employed Martin and some other maintainers, but it's always been an OSS project under the Apache 2.0 license.
That being said, there's a few things that lead to this perception: the first is that it used to be under Google's GitHub account, but is now under its own org. The second is that contributing to jj does require signing Google's CLA. That is something that is desired to change, but that's up to Google. Due to the license, the community could fork it, and still have the rights to use the code, but that would be pretty aggressive, and so everyone involved would rather work together on this than do so. The move to its own GitHub org was one example of movement in that direction, but I'm not aware of an actual timeline to remove the CLA just yet. The project will figure it out over time.
(I have a commit bit but am not a jj maintainer, so the above is my own impression from being involved in the community for the past few years.)