ound these instructions on another site. i still have to try them myself so not sure if they're 100% correct.
Mac Installation:
1. Copy plugin files to your plugins folders: (Components, VST & VST3 folders)
2. You can put the (Nexus Content) folder where ever you want. Just remember to modify the path in step 3.
3. Motify settings.json in reFX > Nexus folder using a text editor.
Change from:
"library_folder": “/Applications/NEXUS library/”,
To: "library_folder": “/WHEREVER/YOU PLACED/THE NEXUS CONTENT FOLDER/“
It should look something like this, for an example:
“/Library/Audio/Plug-Ins/Nexus Content/“
4. Put the reFX folder TO: /Users/Shared/
5. Open your DAW, Scan for new VST’s
A pop-up screen will show up telling you that NEXUS3 is registered. Click OK