> I am using LilyPond v2.25.29 on macOS and have noticed that the output SVG > files do not contain URIs for point-and-click functionality. [...[
This problem is tracked as issue #6504, https://gitlab.com/lilypond/lilypond/-/issues/6504 and a fix is not yet available in Cairo, unfortunately. If you are brave you might work on the suggested (but abandoned) fix https://gitlab.freedesktop.org/cairo/cairo/-/merge_requests/254 so that we eventually get a new Cairo release that comes with the necessary support. Werner
