diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..8392f5a
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,6 @@
+with import <nixpkgs> {}; {
+  urchin = stdenv.mkDerivation {
+    name = "urchin";
+    buildInputs = [ busybox ];
+  };  
+}