diff --git a/default.nix b/default.nix
new file mode 100644
index 00000000..3b55306f
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,21 @@
+with import <nixpkgs> {}; {
+  pyEnv = stdenv.mkDerivation {
+    name = "autopush-env";
+    buildInputs = [ stdenv gcc python27Full python27Packages.virtualenv readline libffi openssl openjdk7 gnumake ];
+    shellHook = ''
+      if [ ! -d pypy ]
+      then
+        virtualenv -p $(nix-build -A pythonFull '<nixpkgs>')/bin/python pypy
+      fi
+      source pypy/bin/activate
+      if [ ! -e `pwd`/pypy/bin/pypy ]
+      then
+        ln -s `pwd`/pypy/bin/python `pwd`/pypy/bin/pypy
+      fi
+      if [ ! -d ddb ]
+      then
+        make travis
+      fi
+    '';
+  };
+}