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