diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..173e2d4
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,15 @@
+{ pkgs ? import <nixpkgs> {} }: with pkgs; let
+  python-with-packages = python3.withPackages (pypkgs: with pypkgs; [
+    numpy
+    pygame
+  ]);
+in runCommand "graph-tycoon" {
+  buildInputs = [ python-with-packages makeWrapper ];
+} ''
+  mkdir -p $out/bin $out/src
+  (cd ${./src}
+     find . -name '*.py' -exec cp --no-preserve=mode --parents -t $out/src {} \;
+  )
+  makeWrapper ${python-with-packages}/bin/python $out/bin/graph-tycoon \
+    --add-flags $out/src/main.py
+''