You have Biab, you have the BBPlugin/BBPlugin Standalone, you have RealBand (neglectedware) and maybe a crossplatfom Live Arranger version of the BBPlugin Standalone. The programmers doing Biab/BBW4/RealBand are Delphi, the programmer doing the crossplatform JUCE Plugin is C++ released on Win and Mac (possibly Linux) at the same time without having to spend another 6 months on the Mac version.
What would be the most sustainable and efficient for the future ?
If the Plugin/Plugin Standalone contains the generate code to start with then other popular functions that are in Biab can be added gradually without all the basically unnecessary bloated stuff.
They won't have all their eggs in one basket, you will still have the current Biab 6 months Win 6 months Mac for some time yet, but you will also have a crossplatform BBPlugin/BBPlugin Standalone/Live Arranger released at the same time for Win/Mac/(Lin).
RealBand is just simply too neglected, imagine if all the Biab Delphi programmers suddenly focused on RealBand !
I posted info 10 years ago when I was using and interested in RealBand, they are only just now talking about maybe implementing that info

ask yourself. I post stuff for other users that have been neglected wanting more work put into RealBand, but me personally am over it. I think this
RealBand Wishlist should be removed from the wishlist as giving false HOPE (holding onto positive expectations)