+# by default, we produce combined notes/slides output
+notes.config:
+ echo '\setbeameroption{show notes on second screen}' > notes.config
+
+# rules for generating notesonly
+notesonly-config:
+ echo '\setbeameroption{show only notes}' > notes.config
+notesonly: notesonly-config pdf
+
+# rules for generating slides only
+slides-config:
+ echo '' > notes.config
+slides: slides-config pdf