The buildctl/skopeo step here was one of nineteen near-identical copies
across the estate. That duplication is why moving them off rootless
buildah (infra#241) took eleven commits and then had to be rediscovered
in both repo templates and the gitea-ci skill.
The implementation now lives in .gitea/build-image.sh, byte-identical to
mathias/infra's ci-templates/build-image.sh and held there by a drift
gate. What used to be textual differences between copies -- labels, tags,
build-args, build target -- are environment inputs.
Behaviour is unchanged: same registry, same tags, same labels, same
buildctl-against-host-buildkitd path.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011PL5XcG68SvQqz3vGVbWbf
