Unable to build Nimble

Hi! Thank you for providing this example, I got this error when building:

```
Building universal frameworks with common architectures is not possible. The device and simulator slices for "Nimble" both build for: arm64
Rebuild with --use-xcframeworks to create an xcframework bundle instead.
make: *** [setup] Error 1
```

I added `--use-xcframeworks` and `make setup` passed