[stouset]

Your currently active commit is the staging area, only now that it's a "real" commit instead of some bastard half-commit all of your regular tools work with it directly. Same goes with the stash, it's rendered completely irrelevant.

When you're ready to "commit", you give a description to your current set of changes (`jj describe -m`) and then split out any of the pieces you don't want into the next commit (`jj split`). You get to pick the parts you want pulled out, and those get pulled out onto a new, fresh commit.