~/emacs-build/git
-Contains a checkout of the Emacs git repository, organized according
-to branches, with git worktree
+Contains checkouts and worktrees of the Emacs git repository,
+organized according to branches.
+
+~/emacs-build/git/master
+
+A checkout out of the master branch of the Emacs git repository.
~/emacs-build/git/emacs-$branch
-A branch of the git repository containing the current release
+A worktree of the git repository containing the current release
branch. This has to be created by hand.
~/emacs-build/git/emacs-$version