Goku for Karabiner rule: right option + n = ñ (Spain)

alternate_input_source_for_one_key.edn

;; slightly modified solution from https://github.com/pqrs-org/Karabiner-Elements/issues/1926 

{:input-sources {:es  {:input_source_id "com.apple.keylayout.Spanish"}
                 :abc {:input_source_id "com.apple.keylayout.ABC"}}
 :main          [;
                 {:des "right option + n = ñ"
                  :rules [[:!En {:input :es} nil {:delayed {:invoked [:semicolon {:input :abc}] :canceled {:input :abc}}}]]
                  }]
 }