No, AUv3s work on MacOS too…
https://developer.apple.com/videos/play/wwdc2015/508
Some tips which I don’t think are in the video:
- You’ll need to codesign everything
- You’ll probably need to restart your computer after first building the project:
- You should run the standalone target once (the debugger in Xcode is enough)
- You’ll need to hit a tickbox in Logic’s plug-in manager to allow the AUv3 plug-in to load
- Debugging after load is awkward - you’re in a separate process, console output doesn’t work, and you’re probably sandboxed too