What is jj and why should I care?

Re:What is jj and why should I care? by gcr on Tuesday April 14, 2026 @08:52AM (#47765019)

You can switch an existing git repo to jj by using:

jj git init --git-repo my-repo

I think (but CANNOT PROMISE) that just removing the .jj folder will bring you back, but definitely take a backup of .git before you try this in case I’m wrong.

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Re:What is jj and why should I care? by Jenk on Tuesday April 14, 2026 @08:53AM (#47765037)

No that is correct when in colocate mode (which is the default mode). Simply removing the .jj folder will "de-jj" the repo entirely, but will leave you in a headless state. Simple to fix with a `git switch` though.

If you are _not_ in colocate mode, the .git folder is located _inside_ the .jj folder. So worth checking!

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