# Overview of tag-based Custom Assembly

URL: https://chainguard-docs-preview-git-fork-eslerm-eslerm-custom-id-f0ac5e.chainguard.app/chainguard/containers/custom-assembly/tag-based-custom-assembly.md

How tag-based Custom Assembly uses overlays and bindings to apply customizations to a subset of a repository's tags.

## Pages

- [Managing tag-based Custom Assembly with chainctl](https://chainguard-docs-preview-git-fork-eslerm-eslerm-custom-id-f0ac5e.chainguard.app/chainguard/containers/custom-assembly/tag-based-custom-assembly/chainctl.md): How to use chainctl to create overlays and bind them to specific tags of a Custom Assembly repository.
- [Managing tag-based Custom Assembly with Terraform](https://chainguard-docs-preview-git-fork-eslerm-eslerm-custom-id-f0ac5e.chainguard.app/chainguard/containers/custom-assembly/tag-based-custom-assembly/terraform.md): How to use the Chainguard Terraform provider to create overlays and bind them to specific tags of a Custom Assembly repository.