- Environment variable :envvar:`NOTMUCH_GIT_DIR`.
+- Configuration item :nmconfig:`git.path`
+
- If invoked as `nmbug` or with the :option:`--nmbug` option,
:code:`$HOME/.nmbug`; otherwise
:code:`$XDG_DATA_HOME/notmuch/$NOTMUCH_PROFILE/git`.
- Environment variable :envvar:`NOTMUCH_GIT_PREFIX`.
+- Configuration item :nmconfig:`git.tag_prefix`.
+
- If invoked as `nmbug` or with the :option:`--nmbug` option,
:code:`notmuch::`, otherwise the empty string.