mode=max was re-uploading the bun install cache mount (~40–60s per
build, ~90s combined for api-core + web) to the Gitea OCI registry
on every push, even when source hadn't changed. That single export
accounts for most of the delta between 1-minute and 3-minute deploys.
mode=min only exports the final stage's layers. The trade-off is a
few-second tax on cold buildkitd starts (the installer stage no
longer warms from registry cache), but the per-push savings dwarf it.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
enricobuehler
6c46ca98a7