Just one correction: The original Macro Polyoscillator 2 from Xenakios didn’t violate any license of Mutable Instruments. On the contrary, in addition to being license compliant, permission was also obtained directly from Émilie Gillet. The only thing it violated was Vortico’s (at the time as-of-yet unwritten) desire to keep the Library free from modules that are too similar in name and appearance. Of course, it’s all the better for it now!
A correction : there is a binary build available for Mac Os of the Atelier plugin beta, but the binary is not (fully) compatible with the latest Mac Os version (Catalina). I can’t fix that on my end. Hopefully the plugin can soon appear in the VCV Library, that will then do the compatible binary builds for all the platforms.