This over-estimates the lock-in, because jj uses git under the hood. You can try jj, and your colleagues need never know. If you hate it after a couple weeks, y

This over-estimates the lock-in, because jj uses git under the hood. You can try jj, and your colleagues need never know. If you hate it after a couple weeks, you can return to git, no sweat. It's much easier to try out than earlier VC systems.