TODO: new ideas after considering #10.

TODO.md

@@ -5,5 +5,8 @@ Pending actions, general notes, etc. (in no particular order):
 * Find the way for Sphinx to offer a drop-down to select git tag-tied versions of documentation.
   * https://www.codingwiththomas.com/blog/my-sphinx-best-practice-for-a-multiversion-documentation-in-different-languages
 * Refactor code so Makefile, pyproject.toml are at the repository's root?
+* [#10](../../issues/10): Review [vag](https://github.com/charlyoleg2/vag) and [vcstool](https://github.com/dirk-thomas/vcstool) for inspiration.
+* Refactor multigit so it can be used in library mode by other applications.
+* Find the way to simplify subrepos' format allowing for *gitref* instead of *branch|tag|commit* (the code should find what kind of object *gitref* references).
 
 ## IN PROGRESS