Helm vs Kustomize
The two dominant K8s manifest tools, with opposite philosophies. Helm packages charts (Go-templated YAML + values.yaml + releases) for vendoring and distribution. Kustomize patches a base with environment overlays — no templates, pure structured merge. The 2026 consensus: Helm for third-party software you consume, Kustomize for your own app, and a hybrid pattern when you need both.
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