I found [this article](https://raymii.org/s/tutorials/Create_Kubernetes_user_restricted_to_one_namespace_with_resource_limits.html) which describes how to create a Kubernetes user that is limited to a single namespace and how to add resource limits to that namespace. This could be a good use case for devops engineers that need to test their manifests/charts before going to [[GitOps]] ([[Flux]]) or for new devops engineers in training.