build: Add an option for builds without the signature

Makefile

@@ -32,6 +32,19 @@ serve: ${OPTIMIZED_IMAGES}
 	mv _site/assets/fonts _site/fonts
 	cd _site/ && python -m http.server 8080
 
+buildnosign: ${OPTIMIZED_IMAGES}
+	python ../shared-assets/makesite.py \
+		-p params.json \
+		-v page_assets=https://cdn.polynom.me \
+		-v build_time="${BUILD_DATE}" \
+		--assets ./assets \
+		--copy-assets \
+		--ignore assets/img/raw \
+		--include robots.txt \
+		--blog \
+		--rss
+	tar -czf blog.tar.gz _site
+
 build: ${OPTIMIZED_IMAGES}
 	python ../shared-assets/makesite.py \
 		-p params.json \