In case you were wondering, you can easily run macOS 15 in a VM by downloading the IPSW from developer.apple.com and using it to create a new machine in VirtualBuddy (https://github.com/insidegui/VirtualBuddy). Thanks @_inside for your continued work on this!
GitHub - insidegui/VirtualBuddy: Virtualize macOS 12 and later on Apple Silicon, VirtualBuddy is a virtual machine GUI for macOS M1, M2, M3, M4

Virtualize macOS 12 and later on Apple Silicon, VirtualBuddy is a virtual machine GUI for macOS M1, M2, M3, M4 - insidegui/VirtualBuddy

GitHub
@chris do you know, if you can run the Xcode intelligence feature from inside the VM? It isn’t supported in macOS 14 unfortunately.
@alexsteinerde I think there seems to be a limitation there currently!