Documentation is best: https://kubectl.docs.kubernetes.io/references/kustomize/ https://kubectl.docs.kubernetes.io/references/kustomize/ However, biggest is it

Documentation is best: https://kubectl.docs.kubernetes.io/references/kustomize/ https://kubectl.docs.kubernetes.io/references/kustomize/ However, biggest is it's just YAML patching. So you don't have this {{if such}} littered throughout your project that people can't easily pick up. Values is biggest reason I see people want Helm but if it's all env variables, kustomize lets you put in .env file it turns into config map and injects into deployments. It's possible Kustomize doesn't fix your problem esp if Developers have decided it's not their problem. I just find Devs find Kustomize much easier.