diff --git a/Makefile b/Makefile
index 9201430..b65fe75 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,17 @@
-SOURCES := $(shell cd ./src && find ./ -type f -and -not -name '*.vars')
+SOURCES := $(shell find ./src -type f -and -not -name '*.vars')
+SOURCES_REL := $(shell cd ./src && find ./ -type f -and -not -name '*.vars')
 
-shellcheck:
-	cd ./src && shellcheck ${SOURCES}
+build: artifacts/docker-marker
+
+shellcheck: artifacts/shellcheck-log
+
+artifacts/shellcheck-log: ${SOURCES} artifacts
+	cd ./src && shellcheck ${SOURCES_REL} > ../artifacts/shellcheck-log
+
+artifacts:
+	mkdir -p artifacts
+
+artifacts/docker-marker: Dockerfile ${SOURCES} artifacts/shellcheck-log
+	docker build -t redxef/concourse-ssh-resource .
+	touch artifacts/docker-marker
 
-.PHONY: shellcheck