None
For now we were having a parameter in the spec, we'll do the CAPO way:
https://github.com/kubernetes-sigs/cluster-api-provider-openstack/blob/1c78326d8aad3fb229d7feec6a1888df20386f77/pkg/scope/provider.go#L47-L51
https://github.com/shiftstack/hypershift/pull/9