diff --git a/build.py b/build.py
new file mode 100755
index 0000000..ea0e179
--- /dev/null
+++ b/build.py
@@ -0,0 +1,10 @@
+#! /usr/bin/env python3
+"""Dummy build."""
+
+from pathlib import Path
+
+from rwx.fs import make_directory
+
+if __name__ == "__main__":
+    root = Path(__file__).parent
+    make_directory(root / "out")