IMG_NAME=rsyncd REGISTRY=registry.monotremata.xyz IMG=$(REGISTRY)/$(IMG_NAME) PLATFORMS=linux/amd64,linux/arm64 .PHONY: build push buildx build: Dockerfile entrypoint.sh docker build -t $(IMG) . push: build docker image push $(IMG) buildx: Dockerfile entrypoint.sh docker buildx build \ --platform $(PLATFORMS) \ --tag $(IMG) \ --push \ .