tar: This does not look like a tar archive

[ghostsquad]

asdf plugin-add kustomize https://github.com/Banno/asdf-kustomize.git

asdf install kustomize 5.1.1
Downloading kustomize from https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize%2Fv5.1.1/kustomize_v5.1.1_darwin_arm64.tar.gz
tar: This does not look like a tar archive
gzip: unknown compression format
tar: Child returned status 1
tar: Error is not recoverable: exiting now

unsure if this is an issue here or upstream

[gdlx]

This is probably because you're hitting the Github download rate limit.
You need to authenticate using the $OAUTH_TOKEN variable (which should be renamed $GITHUB_API_TOKEN: #12)