Use this to publish the same multi-platform image variants that CI builds for the
dev branch:
docker buildx build \
--platform linux/amd64,linux/arm64 \
--build-context stacker=./stacker \
-f Dockerfile.prod \
-t trydirect/status:unstable \
-t trydirect/status:latest \
--push \
.This requires a sibling checkout at ../stacker because Cargo.toml includes
local path dependencies from that repository.
If you only want to validate the multi-platform build locally without pushing,
replace --push with --output=type=oci,dest=./status-multiarch.tar.