to pass to 'hb_shape_full' the required array of features, as
mentioned in the above HarfBuzz discussion.
+Alternatively, stylistic sets could be a font property, or a face
+property. See this discussion:
+
+ https://lists.gnu.org/archive/html/emacs-devel/2022-09/msg01597.html
+
+For some relevant use cases, see
+
+ https://lists.gnu.org/archive/html/emacs-devel/2022-09/msg01652.html
+ https://lists.gnu.org/archive/html/emacs-devel/2022-09/msg01701.html
+ https://lists.gnu.org/archive/html/emacs-devel/2022-09/msg01772.html
+
** Concurrency
Stefan Monnier writes: "Including it as an 'experimental' compile-time
option sounds good. Of course there might still be big questions