The plug-in is a reverb effect that I call "Multiverb". It is based on a model of a simple network of multi-port acoustic elements, including junctions and damped delay lines. It is similar to a FDN reverb. I have tested it with Audacity on both my Linux and Windows PCs and haven't uncovered any new problems lately. I tried to make it "real time safe", but I have no way to test this.
I have the source code on GitHub, so I will see about posting the .dll and .so files there too.
I have a latex/pdf document, but I need to update it with the latest changes. I will post that also.