I needed a way to send my lyrics to vMix (https://www.vmix.com/
)for my live Show. But I don't want the "green screen way" to do that because it avoids me to use the output for a real use (only to be used for video mixing with a color Keying).
So I write a small piece of software that ask the Stage display API for the current slide text and send it to vMix on prepared text/title Input. The layout is done on vMix (as I get the lyrics in raw text) and the input could be used on the overlay layer you want.
If you find it useful, you can find it there: https://github.com/mbienvenue/LyricsTovMix
That's just a software that you setup once then launch it and forget.
The development isn't perfect, but that makes the job done for my needs.