diff --git a/app/factorio/BUILD b/app/factorio/BUILD
new file mode 100644
index 0000000..dc5dfd5
--- /dev/null
+++ b/app/factorio/BUILD
@@ -0,0 +1,33 @@
+load("@io_bazel_rules_docker//container:container.bzl", "container_image")
+
+container_image(
+    name="latest",
+    base="@prodimage-bionic//image",
+	tars = ["@factorio-headless//file"],
+	files = [":entrypoint.sh"],
+	directory = "/",
+	entrypoint = ["/entrypoint.sh"],
+)
+
+# Totally broken right now because google/containerregistry doesn't handle
+# /usr/bin/env python == python3.
+#container_push(
+#    name = "push_latest",
+#    image = ":latest",
+#    format = "Docker",
+#    registry = "registry.k0.hswaw.net",
+#    repository = "app/factorio",
+#    tag = "latest",
+#)
+# So this is a replacement hack.
+genrule(
+	name = "push_latest",
+	srcs = [":latest"],
+	outs = ["version.sh"],
+	executable = True,
+	cmd = """
+		docker tag bazel/app/factorio:latest registry.k0.hswaw.net/app/factorio:latest
+        docker push registry.k0.hswaw.net/app/factorio:latest
+		echo -ne "#!/bin/sh\necho Tagged.\n" > $(OUTS)
+	""",
+)