diff --git a/shell.nix b/shell.nix
new file mode 100644
index 000000000..a4e85586c
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,13 @@
+# Book restricts to a prior version of dart
+# how I found previous version of dard https://www.nixhub.io/packages/dart
+{ pkgs ? import (fetchTarball {
+  url = "https://github.com/NixOS/nixpkgs/archive/e040aab15638aaf8d0786894851a2b1ca09a7baf.tar.gz";
+  sha256 = "01zbkazzfnp1lq7g5zk9s1xh53jwsny9aabng879n8csh1i8qbmk";
+}) {} }:
+
+pkgs.mkShell {
+  buildInputs = [
+    pkgs.dart
+    pkgs.zulu
+  ];
+}