# Install cek with Homebrew Explore the (overlay) filesystem and layers of OCI container images. Version 0.2.0 via Homebrew; verified 2026-05-16. ## Install ```sh sudo av install brew:cek ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install cek ``` Evidence: local Homebrew formula metadata ## Package facts - **Package key:** brew:cek - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.2.0 - **Source summary:** Explore the (overlay) filesystem and layers of OCI container images - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** MIT - **Source archive:** - **Last updated:** 2026-05-16T14:38:51Z - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - cek (cli) - cek (alias) ## Build dependencies - go ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 0.2.0 - Package-manager updated: 2026-05-16 - Local data: ok - Upstream repository: https://github.com/bschaatsbergen/cek - Upstream latest detected: v0.2.0 (current) ## Project history and usage cek, the container exploration kit, is a Go CLI for inspecting OCI container image filesystems and layers without running containers. ### Project history The official repository was created on December 27, 2025. The README positions cek as a command-line utility for browsing files, reading contents, inspecting layer mechanics, listing tags, exporting images, and showing image metadata. ### Adoption history The project is young but has a clear package-manager path through Homebrew and Go installation. The official repository metadata showed more than 300 stars and its first listed GitHub release, v0.2.0, was published on May 16, 2026. ### How it is used Users run commands such as `cek ls`, `cek cat`, `cek tags`, `cek export`, `cek tree`, and `cek inspect` against OCI image references. The tool can use local container daemon sockets through `DOCKER_HOST` or pull from remote registries. ### Why package nerds care cek is useful to package and container maintainers because it inspects image contents, layers, tags, and metadata without launching a container, which fits CI, registry triage, air-gapped transfer, and image-diff workflows. ### Timeline - 2025: The official GitHub repository was created. - 2026: v0.2.0 was published on GitHub Releases. - 2026: The official repository metadata recorded active development into July. ### Related projects - Docker, Podman, and containerd are supported local daemon sources named in the README. - OCI image registries are the remote source for image pulls and tag listing. ### Sources - - - ## Security Notes infrastructure mutation or orchestration signal. - **Geiger risk:** orange / medium - infrastructure mutation or orchestration signal ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** cek - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Related links - [Cloud CLI packages](https://www.automicvault.com/pkg/cloud-clis/) - Belongs to a cloud or infrastructure command family. - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Secret-risk packages](https://www.automicvault.com/pkg/secret-risk-packages/) - Has protected-tool coverage, approval-gate, or non-low Geiger security signals. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [go](https://www.automicvault.com/pkg/brew/go/) - Build dependency declared by Homebrew. - [chunkah](https://www.automicvault.com/pkg/brew/chunkah/) - Shares av.db curated category or tags: cli, containers, developer-tools, image-layers, oci. - [dive](https://www.automicvault.com/pkg/brew/dive/) - Shares av.db curated category or tags: cli, containers, developer-tools, image-layers. - [docker-squash](https://www.automicvault.com/pkg/brew/docker-squash/) - Shares av.db curated category or tags: cli, container-images, containers, developer-tools. - [dockviz](https://www.automicvault.com/pkg/brew/dockviz/) - Shares av.db curated category or tags: cli, container-images, containers, developer-tools. - [manifest-tool](https://www.automicvault.com/pkg/brew/manifest-tool/) - Shares av.db curated category or tags: cli, containers, developer-tools, oci. - [cdebug](https://www.automicvault.com/pkg/brew/cdebug/) - Shares av.db curated category or tags: cli, containers, developer-tools. - [cekit](https://www.automicvault.com/pkg/brew/cekit/) - Shares av.db curated category or tags: cli, containers, developer-tools. - [cri-tools](https://www.automicvault.com/pkg/brew/cri-tools/) - Shares av.db curated category or tags: cli, containers, developer-tools. ## Combined YAML source View the package source record on GitHub. [combined/cek.yml](https://github.com/automic-vault/db/blob/main/combined/cek.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - cross-ecosystem install command graph