Is this the application that Taran (of second keyboard fame) indicated has a price tag of about $2200 if support for more than 10 devices is required?

I'll admit it - I'm apparently too stupid to see the obvious. Ignoring whether Taran's second keyboard project is good or bad, after spending several days pulling my hair out trying to make sense of it, I still can't see the connection between how a Luamacros script file, such as his SECOND_KEYBOARD...