This confuses me enormously. Perhaps because I am new to ikiwiki, to perl, to Linux, etc.
note and popups are templates? But they're not in the templates directory, and in my readings here, templates are supposed to be in the ../templates directory.
+
+> Ikiwiki has an basewiki underlay that provides wiki files not included in
+> your personal wiki sources. The note and popup template pages are
+> installed there, typically in `/usr/share/ikiwiki/basewiki/templates/`
+> --[[Joey]]