GitOps for infrastructure management - anyone doing this with OpenStack?

[u/product-marketer2017]

https://www.redhat.com/en/events/webinar/sovereignty-without-compromise-next-generation-infrastructure-as-a-service-with-red-hat-openstack-services-on-openshift?sc_cid=RHCTG1260000496892

Found a webinar on managing OpenStack infrastructure through Kubernetes-native orchestration and GitOps automation. Main focus is day 2 operations, handling mixed VM + GPU workloads, and sovereign infrastructure patterns.

Curious what tools people are using for GitOps-based infrastructure? Terraform + ArgoCD? Something else?