Thanks @bmike. That is the question I want answered. It initially seemed like superuser was a good place to ask, but since I wasn't getting answers, I thought I'd ask in chat first before actually creating or migrating (if possible/sensible) a full question about it.
From my initial research, I worry no such app exists and so I might need to create it myself. Is it better to ask an OSX coding app question on Ask Different or on StackOverflow?