diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..a1ba79d
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,8 @@
+# https://nixos.wiki/wiki/Python#Development_shell
+{ pkgs ? import <nixpkgs> {} }:
+let
+  my-python-packages = ps: with ps; [
+    psutil
+  ];
+  my-python = pkgs.python3.withPackages my-python-packages;
+in my-python.env